Phase information extraction method and device, quantum computer and readable storage medium
By pre-processing, matrixing and traversal processing of thermal images in quantum computers, phase information of the qubit driving line is extracted, and the problem of the influence of the driving signal on other qubits is solved, phase compensation is achieved, and the accuracy and stability of the computer are improved.
Patent Information
- Application Number
- CN202311321991.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-12
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2043-10-12
AI Technical Summary
In quantum computers, the dense qubit drive lines cause the driving signals not only drive the target qubits, but also affect other qubits, which are mainly reflected in the phase and amplitude. How to extract the phase information of the qubit drive lines is a technical problem that needs to be solved urgently.
By preprocessing the received heat image, a heat grayscale image is obtained, matrixed and traversed according to preset traversal rules, aliquoted processing is used to determine the aliquoted image with the highest similarity, and its phase information is extracted to determine the target phase information.
Accurate extraction of phase information of qubit drive lines is achieved, and the impact of other bit drive lines on target qubits is reduced through phase compensation, which improves the accuracy and stability of quantum computers.
Smart Images
Figure CN119831066A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of quantum computer technology, and in particular to a phase information extraction method, device, quantum computer and readable storage medium. Background Art
[0002] In a quantum computer, the quantum chip is the core of the operation of the quantum computer. Multiple quantum bits are integrated on the quantum chip, and each quantum bit is driven by the corresponding quantum bit drive line. In some quantum chips, there will be densely arranged quantum bit drive lines, such as XY drive lines. Due to the dense arrangement of the quantum bit drive lines, the drive signal applied to each quantum bit drive line will not only drive the corresponding quantum bit, but also affect other quantum bits, and this impact is mainly reflected in the amplitude and phase of its quantum bit.
[0003] When the driving signal of the quantum bit driving line is at a specific frequency, we only need to know the phase information of the quantum bit driving line to read the amplitude information of the quantum bit driving line on the thermal image. Therefore, how to extract the phase information of the quantum bit driving line is a technical problem that needs to be solved urgently. Summary of the invention
[0004] The present invention provides a phase information extraction method, device, electronic device and readable storage medium to solve the problem of how to extract the phase information of a quantum bit driving line.
[0005] The embodiment of this specification provides a method for extracting phase information, wherein the phase information is the phase information of the driving effect of the driving signal applied on the driving line of other quantum bits on the target quantum bit, including:
[0006] Preprocessing the received thermal image to obtain a thermal grayscale image, wherein the thermal image is a thermal image with thermal map information generated by the driving signal applied on the other quantum bit driving lines affecting the target quantum bit;
[0007] Matrixing the thermal grayscale image, and traversing the matrixed thermal grayscale image according to a preset traversal rule;
[0008] The traversal heat image obtained in each traversal is divided into equal parts, and the equal parts image with the highest similarity is determined based on the equal parts processing results;
[0009] The phase information of the traversal heat image corresponding to the equally divided image is extracted to determine the target phase information.
[0010] Optionally, the preprocessing of the received thermal image includes:
[0011] Cutting the thermal image;
[0012] Grayscale the cropped thermal image.
[0013] Optionally, the matrixing the thermal grayscale image includes:
[0014] The thermal grayscale image is divided into thermal grayscale images consisting of a plurality of columns, wherein the thermal grayscale image consisting of a plurality of columns is the matrixed thermal grayscale image.
[0015] Optionally, traversing the matrixed thermal grayscale image according to a preset traversal rule includes:
[0016] All columns of the matrixed thermal grayscale image are traversed in order from right to left.
[0017] Optionally, the traversal heat image obtained by each traversal is divided into equal parts, and the equal-divided image with the highest similarity is determined based on the equal-dividing processing result, including:
[0018] The traversal heat image obtained by each traversal is equally divided to obtain a first equally divided heat image and a second equally divided heat image, wherein the first equally divided heat image corresponds to the second equally divided heat image in one-to-one correspondence;
[0019] Mirroring the first equally divided thermal image to obtain a mirrored equally divided thermal image;
[0020] A similarity comparison is performed between the second equally divided thermal image and the equally divided mirror image corresponding to the first equally divided thermal image to obtain two groups of equally divided images with the highest similarity.
[0021] Optionally, the dividing each of the traversed heat images into equal parts, and determining the equal-divided images with the highest similarity based on the equal-dividing processing results, further includes:
[0022] The traversal heat image obtained by each traversal is equally divided to obtain a first equally divided heat image and a second equally divided heat image, wherein the first equally divided heat image corresponds to the second equally divided heat image in one-to-one correspondence;
[0023] Mirroring the second equally divided thermal image to obtain a mirrored equally divided thermal image;
[0024] A similarity comparison is performed on the equally divided mirror images corresponding to the first equally divided thermal image and the second equally divided thermal image to obtain two groups of equally divided images with the highest similarity.
[0025] Optionally, extracting the phase information of the traversal heat image corresponding to the equally divided image to determine the target phase information includes:
[0026] Extracting phase information in the traversal heat images corresponding to the two groups of equally divided images with the highest similarity;
[0027] Based on the phase information, a corresponding two-dimensional sub-image is located in the thermal image, and a preset function is used to fit the two-dimensional sub-image to obtain a fitting result;
[0028] The target phase information is determined based on a comparison between the fitting result and the expected effect.
[0029] The embodiment of this specification also provides a phase information extraction device, including:
[0030] An image preprocessing module, used to preprocess the received thermal image to obtain a thermal grayscale image, wherein the thermal image is a thermal image with thermal map information generated by the driving signal applied on the other quantum bit driving lines affecting the target quantum bit;
[0031] An image traversal module, used for matrixing the thermal grayscale image, and traversing the matrixed thermal grayscale image according to a preset traversal rule;
[0032] An image equal division module is used to divide the traversal heat image obtained in each traversal into equal parts, and determine the equal division image with the highest similarity based on the equal division processing result;
[0033] The phase information determination module is used to extract the phase information of the traversal thermal image corresponding to the equally divided image and determine the target phase information.
[0034] A quantum computer comprises a phase information extraction device and a quantum processor, wherein the quantum processor outputs target phase information according to the phase information extraction device.
[0035] A quantum computer-readable storage medium, wherein the quantum computer-readable storage medium stores one or more instructions, and when the one or more instructions are executed by a quantum computer, any of the above methods is implemented.
[0036] Its beneficial effects are as follows: the present invention obtains a thermal grayscale image by preprocessing the received thermal image, matrixes the thermal grayscale image, and traverses the matrixed thermal grayscale image according to a preset traversal rule; divides the traversed thermal image obtained by each traversal into equal parts, and determines the equally divided image with the highest similarity based on the equal division processing result; extracts the phase information of the traversed thermal image corresponding to the equally divided image, and determines the target phase information; finally, based on the target phase information, reads the corresponding amplitude information in the thermal image, and performs amplitude and phase compensation on the driving signal of the target bit driving line according to the phase information and amplitude information, so as to reduce the influence of other bit driving lines driving the corresponding quantum bits on the target quantum bit driving line driving the corresponding quantum bits. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0038] Figure 1 Schematic diagram of driving effects under different quantum bit driving lines provided in this manual;
[0039] Figure 2 A schematic diagram of the structure of a phase information extraction device for a quantum bit drive line provided in an embodiment of this specification;
[0040] Figure 3 A thermal grayscale image provided in the embodiments of this specification;
[0041] Figure 4 A traversal heat image provided by an embodiment of this specification;
[0042] Figure 5 Another traversal heat image provided for the embodiments of this specification;
[0043] Figure 6 A schematic diagram of the principle of a method for extracting phase information of a quantum bit drive line provided in an embodiment of this specification;
[0044] Explanation of the reference numerals: quantum bit driving lines 1, 2, quantum bits 3, 4. DETAILED DESCRIPTION
[0045] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as limiting the present invention.
[0046] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as limiting the present invention.
[0047] It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0048] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
[0049] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.
[0050] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0051] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0052] In some quantum chips, there are densely arranged quantum bit drive lines. When a quantum bit drive line transmits a drive signal to drive the corresponding quantum bit, it will cause crosstalk to other surrounding quantum bits. Figure 1 As shown, when the qubit 3 is driven by the qubit driving line 1, the driving signal transmitted by the qubit driving line 1 will interfere with the qubit 4, and this interference is inevitable. The interference is mainly reflected in the influence of phase and amplitude, and the amplitude can be read on the thermal image according to the phase. In order to ensure that the qubit 4 is normally driven by the qubit driving line 2, how to extract the phase information is a technical problem that needs to be solved urgently. Therefore, a phase information extraction method, device, quantum computer and storage medium are proposed.
[0053] Reference Figure 2 A schematic diagram of the principle of a phase information extraction method provided in an embodiment of this specification, wherein the phase information is the phase information of the driving effect of the driving signal applied on the driving line of other quantum bits on the target quantum bit, including:
[0054] S101: Preprocess the received thermal image to obtain a thermal grayscale image.
[0055] Optionally, the preprocessing of the received thermal image includes:
[0056] Cutting the thermal image;
[0057] Grayscale the cropped thermal image.
[0058] In a preferred embodiment, since the original thermal image of the quantum bit driving line contains information such as coordinate axes and scales, and this information has no practical value when extracting phase information, it is necessary to remove useless information such as coordinate axes and scales. The present application crops the received thermal image by cropping to remove useless information. Since the original thermal image of the quantum bit driving line is a color image, in order to facilitate the subsequent processing of the thermal image, the cropped thermal image will also be gray-scaled, such as Figure 2As shown, the cropped thermal image only retains black, white and gray. It should be noted that the thermal image is a thermal image with thermal map information generated by the driving signal applied on the other quantum bit driving lines affecting the target quantum bit. The thermal map information includes phase, amplitude, and excitation probability of quantum bit 1 state.
[0059] S102: Matrixing the thermal grayscale image, and traversing the matrixed thermal grayscale image according to a preset traversal rule.
[0060] Optionally, the matrixing the thermal grayscale image includes:
[0061] The thermal grayscale image is divided into thermal grayscale images consisting of a plurality of columns, wherein the thermal grayscale image consisting of a plurality of columns is the matrixed thermal grayscale image.
[0062] Optionally, traversing the matrixed thermal grayscale image according to a preset traversal rule includes:
[0063] All columns of the matrixed thermal grayscale image are traversed in order from right to left.
[0064] In a preferred embodiment, when the thermal grayscale image is as follows Figure 3 As shown in , the phase information extracted from the thermal grayscale image is not realistic. Therefore, we regard the thermal grayscale image as a matrix, that is, divide the thermal grayscale image into thermal grayscale images composed of multiple columns, and then traverse all columns of the matrixed thermal grayscale image in order from right to left. For example, Figure 3 Divide into five columns, mark the five columns 1, 2, 3, 4, 5 in turn, and then traverse all the columns from right to left, and obtain a traversal thermal image composed of 5, 1, 2, 3, 4 columns, a traversal thermal image composed of 4, 5, 1, 2, 3 columns, a traversal thermal image composed of 3, 4, 5, 1, 2 columns, and a traversal thermal image composed of 2, 3, 4, 5, 1 columns, that is, each traversal will obtain a traversal thermal image. It should be noted that in the actual matrixing process, in order to facilitate the subsequent extraction of phase information, the thermal grayscale image will be divided into more columns. The number of columns for the thermal grayscale image division is not limited here, and can be adaptively adjusted according to actual conditions.
[0065] S103: The traversal heat image obtained in each traversal is divided into equal parts, and the equal-divided image with the highest similarity is determined based on the equal-dividing processing result.
[0066] Optionally, the traversal heat image obtained by each traversal is divided into equal parts, and the equal-divided image with the highest similarity is determined based on the equal-dividing processing result, including:
[0067] The traversal heat image obtained by each traversal is equally divided to obtain a first equally divided heat image and a second equally divided heat image, wherein the first equally divided heat image corresponds to the second equally divided heat image in one-to-one correspondence;
[0068] Mirroring the first equally divided thermal image to obtain a mirrored equally divided thermal image;
[0069] A similarity comparison is performed between the second equally divided thermal image and the equally divided mirror image corresponding to the first equally divided thermal image to obtain two groups of equally divided images with the highest similarity.
[0070] Optionally, the dividing each of the traversed heat images into equal parts, and determining the equal-divided images with the highest similarity based on the equal-dividing processing results, further includes:
[0071] The traversal heat image obtained by each traversal is equally divided to obtain a first equally divided heat image and a second equally divided heat image, wherein the first equally divided heat image corresponds to the second equally divided heat image in one-to-one correspondence;
[0072] Mirroring the second equally divided thermal image to obtain a mirrored equally divided thermal image;
[0073] A similarity comparison is performed on the equally divided mirror images corresponding to the first equally divided thermal image and the second equally divided thermal image to obtain two groups of equally divided images with the highest similarity.
[0074] In a preferred embodiment, in order to ensure that the subsequent extraction of phase information is accurate, it is necessary to find the most suitable traversal thermal image for extracting the driving influence phase information of the quantum bit driving line. To this end, the traversal thermal image obtained by each traversal needs to be divided into equal parts, that is, each time the traversal is performed, it is divided into equal parts for processing, mirrored once, and the similarity is calculated. After each equal division, a first equal division thermal image and a second equal division thermal image are obtained. Then, the first equal division thermal image is mirrored to obtain a mirrored equal division thermal image. After that, the second equal division thermal image is compared with the equal division mirror image corresponding to the first equal division thermal image for similarity to obtain the two groups of equal division images with the highest similarity. The traversal thermal images corresponding to these two groups of equal division images are the required images, such as Figure 4 , Figure 5 As shown in the figure, the similarity of the two images after bisection and mirroring is the highest, so the two traversal thermal images are most suitable for extracting phase information. It should be noted that when performing the mirroring process, only one of the first and second thermal images needs to be mirrored, and the mirroring process is not limited to the first thermal image.
[0075] In a preferred embodiment, the above Figure 3Taking the division into five columns as an example, after traversing all the columns in order from right to left, the traversal heat image obtained from each traversal is equally divided from the middle, and each equal division process results in a first equal division heat image and a second equal division heat image. Then, the first equal division heat image is mirrored, and the second equal division heat image is compared with the mirror image corresponding to the first equal division heat image for similarity, so as to obtain the two groups of equally divided images with the highest similarity. The traversal heat images corresponding to the two groups of equally divided images with the highest similarity are the traversal heat images composed of columns 4, 5, 1, 2, and 3, and the traversal heat images composed of columns 2, 3, 4, 5, and 1. The above method is used to find the traversal heat image that is most suitable for extracting phase information, so as to improve the accuracy of extracting phase information, facilitate the subsequent phase compensation of the driving signal of the target bit driving line according to the phase information, and reduce the influence of other bit driving lines driving the corresponding quantum bits on the quantum bits corresponding to the target quantum bit driving line.
[0076] S104: Extract the phase information of the traversal thermal image corresponding to the equally divided image, and determine the target phase information.
[0077] Optionally, extracting the phase information of the traversal heat image corresponding to the equally divided image to determine the target phase information includes:
[0078] Extracting phase information in the traversal heat images corresponding to the two groups of equally divided images with the highest similarity;
[0079] Based on the phase information, a corresponding two-dimensional sub-image is located in the thermal image, and a preset function is used to fit the two-dimensional sub-image to obtain a fitting result;
[0080] The target phase information is determined based on a comparison between the fitting result and the expected effect.
[0081] In a preferred embodiment, for example, the phase information extracted from the traversed thermal image corresponding to the two groups of equally divided images with the highest similarity is phase A and phase B. The corresponding two-dimensional sub-graph can be located in the thermal image through phase A and phase B, and then the two sub-graphs are fitted respectively using a preset function to obtain two fitting results. After that, it is determined which of the two fitting results is closest to the expected effect. Assuming that the fitting result of the two-dimensional sub-graph corresponding to phase A is closest to the expected effect, then phase A is the target phase information, and the corresponding amplitude C is read in the thermal image according to phase A. At this time, the inverse phase-A and amplitude-C of phase A and amplitude C are the phase and amplitude that need to be compensated for driving the target quantum bit driving line. Through the above compensation, the impact of other bit driving lines driving the corresponding quantum bits on the target quantum bit driving line driving the corresponding quantum bits is reduced. Among them, the two-dimensional sub-graph is essentially a curve graph, and the preset function can be understood as a formula that can realize curve fitting, and the specific content of the formula is not limited.
[0082] Figure 6 A schematic diagram of a phase information extraction device provided in an embodiment of this specification includes:
[0083] An image preprocessing module 201 is used to preprocess the received thermal image to obtain a thermal grayscale image, wherein the thermal image is a thermal image with thermal map information generated by the driving signal applied on the other quantum bit driving lines affecting the target quantum bit;
[0084] An image traversal module 202, used for matrixing the thermal grayscale image, and traversing the matrixed thermal grayscale image according to a preset traversal rule;
[0085] The image equal division module 203 is used to divide the traversal heat image obtained in each traversal into equal parts, and determine the equal division image with the highest similarity based on the equal division processing result;
[0086] The phase information determination module 204 is used to extract the phase information of the traversal thermal image corresponding to the equally divided image and determine the target phase information.
[0087] Optionally, the image preprocessing module 201 includes:
[0088] An image clipping unit, used for clipping the thermal image;
[0089] The image grayscale processing unit is used to perform grayscale processing on the cropped thermal image.
[0090] Optionally, the image traversal module 202 includes:
[0091] The imaging division unit is used to divide the thermal grayscale image into thermal grayscale images composed of multiple columns, wherein the thermal grayscale image composed of multiple columns is the matrixed thermal grayscale image.
[0092] Optionally, the image traversal module 202 includes:
[0093] The image traversal unit is used to traverse all columns of the matrixed thermal grayscale image in sequence from right to left.
[0094] Optionally, the image dividing module 203 includes:
[0095] A first image dividing unit is used to divide the traversal heat image obtained by each traversal into equal parts, and obtain a first equally divided heat image and a second equally divided heat image, wherein the first equally divided heat image corresponds to the second equally divided heat image in one-to-one correspondence;
[0096] A first mirror processing unit, configured to perform mirror processing on the first equally divided thermal image to obtain a mirrored equally divided thermal image;
[0097] The first similarity comparison unit is used to compare the second equally divided thermal image with the equally divided mirror image corresponding to the first equally divided thermal image to obtain two groups of equally divided images with the highest similarity.
[0098] Optionally, the image dividing module 203 further includes:
[0099] A second image dividing unit is used to divide the traversal heat image obtained by each traversal into equal parts, and obtain a first equal-divided heat image and a second equal-divided heat image, wherein the first equal-divided heat image corresponds to the second equal-divided heat image in one-to-one correspondence;
[0100] A second mirror processing unit, used for mirror processing the second equally divided thermal image to obtain a mirrored equally divided thermal image;
[0101] The second similarity comparison unit is used to compare the similarity of the first equally divided thermal image and the equally divided mirror images corresponding to the second equally divided thermal image to obtain two groups of equally divided images with the highest similarity.
[0102] Optionally, the phase information determination module 204 includes:
[0103] A phase information extraction unit, which extracts the phase information in the traversal heat image corresponding to the two groups of equally divided images with the highest similarity;
[0104] A fitting unit, used for locating a corresponding two-dimensional sub-image in the thermal image based on the phase information, and fitting the two-dimensional sub-image using a preset function to obtain a fitting result;
[0105] The phase information determining unit is used to determine the target phase information based on the comparison between the fitting result and the expected effect.
[0106] Regarding the method in the above embodiment, the process of executing the operation in each step has been described in detail in the embodiment of the device, and will not be elaborated here.
[0107] One embodiment of the present specification provides a quantum computer, including a phase information extraction device and a quantum processor, wherein the quantum processor outputs target phase information according to the phase information extraction device.
[0108] One embodiment of the present specification provides a quantum computer-readable storage medium, wherein the quantum computer-readable storage medium stores one or more instructions, and when the one or more instructions are executed by a quantum computer, any of the above methods is implemented.
[0109] It should be understood that the specific examples in this specification are only intended to help those skilled in the art to better understand the implementation methods of this specification, rather than to limit the scope of the present invention.
[0110] It can be understood that in the various implementations of this specification, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the implementation methods of this specification.
[0111] It can be understood that the various embodiments described in this specification can be implemented individually or in combination, and the embodiments of this specification are not limited to this.
[0112] Unless otherwise specified, all technical and scientific terms used in the embodiments of this specification have the same meaning as those generally understood by those skilled in the art of the technical field of this specification. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the scope of this specification. The term "and / or" used in this specification includes any and all combinations of one or more related listed items. The singular forms of "a", "above", and "the" used in the embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.
[0113] In the several embodiments provided in this specification, it should be understood that the disclosed device can be implemented in other ways. For example, the device implementation described above is only schematic. For example, the division of the device or module is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.
[0114] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of this implementation scheme.
[0115] In addition, each functional module in each embodiment of the present specification may be integrated into one device, or each module may exist physically separately, or two or more modules may be integrated into one device.
[0116] The above is only a specific implementation of this specification, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in this specification, which should be included in the protection scope of this specification. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A phase information extraction method, characterized in that: The phase information is the phase information of the driving effect of the driving signal applied on the other quantum bit driving line on the target quantum bit, including: Preprocessing the received thermal image to obtain a thermal grayscale image, wherein the thermal image is a thermal image with thermal map information generated by the driving signal applied on the other quantum bit driving lines affecting the target quantum bit; Matrixing the thermal grayscale image, and traversing the matrixed thermal grayscale image according to a preset traversal rule; The traversal heat image obtained in each traversal is divided into equal parts, and the equal parts image with the highest similarity is determined based on the equal parts processing results; The phase information of the traversal heat image corresponding to the equally divided image is extracted to determine the target phase information.
2. The method according to claim 1, characterized in that The preprocessing of the received thermal image includes: Cutting the thermal image; Grayscale the cropped thermal image.
3. The method according to claim 1, characterized in that The matrixing the thermal grayscale image comprises: The thermal grayscale image is divided into thermal grayscale images consisting of a plurality of columns, wherein the thermal grayscale image consisting of a plurality of columns is the matrixed thermal grayscale image.
4. The method according to claim 1, characterized in that The traversing the matrixed thermal grayscale image according to the preset traversal rule includes: All columns of the matrixed thermal grayscale image are traversed in order from right to left.
5. The method according to claim 1, characterized in that The step of equally dividing the traversal heat image obtained from each traversal and determining the equally divided image with the highest similarity based on the equally divided processing result includes: The traversal heat image obtained by each traversal is equally divided to obtain a first equally divided heat image and a second equally divided heat image, wherein the first equally divided heat image corresponds to the second equally divided heat image in one-to-one correspondence; Mirroring the first equally divided thermal image to obtain a mirrored equally divided thermal image; A similarity comparison is performed between the second equally divided thermal image and the equally divided mirror image corresponding to the first equally divided thermal image to obtain two groups of equally divided images with the highest similarity.
6. The method according to claim 1, characterized in that The step of equally dividing each of the traversed heat images and determining the equally divided images with the highest similarity based on the equally divided processing results further includes: The traversal heat image obtained by each traversal is equally divided to obtain a first equally divided heat image and a second equally divided heat image, wherein the first equally divided heat image corresponds to the second equally divided heat image in one-to-one correspondence; Mirroring the second equally divided thermal image to obtain a mirrored equally divided thermal image; A similarity comparison is performed on the equally divided mirror images corresponding to the first equally divided thermal image and the second equally divided thermal image to obtain two groups of equally divided images with the highest similarity.
7. The method according to claim 6, characterized in that The extracting phase information of the traversal heat image corresponding to the equally divided image and determining the target phase information includes: Extracting phase information in the traversal heat images corresponding to the two groups of equally divided images with the highest similarity; Based on the phase information, a corresponding two-dimensional sub-image is located in the thermal image, and a preset function is used to fit the two-dimensional sub-image to obtain a fitting result; The target phase information is determined based on a comparison between the fitting result and the expected effect.
8. A phase information extraction device, which is implemented based on a phase information extraction method according to any one of claims 1 to 7, characterized in that ,include: An image preprocessing module, used to preprocess the received thermal image to obtain a thermal grayscale image, wherein the thermal image is a thermal image with thermal map information generated by the driving signal applied on the other quantum bit driving lines affecting the target quantum bit; An image traversal module, used for matrixing the thermal grayscale image, and traversing the matrixed thermal grayscale image according to a preset traversal rule; An image equal division module is used to divide the traversal heat image obtained in each traversal into equal parts, and determine the equal division image with the highest similarity based on the equal division processing result; The phase information determination module is used to extract the phase information of the traversal thermal image corresponding to the equally divided image and determine the target phase information.
9. A quantum computer, characterized in that: It comprises the device as claimed in claim 8 and a quantum processor, wherein the quantum processor outputs target phase information according to the phase information extraction device.
10. A quantum computer readable storage medium, wherein: The quantum computer readable storage medium stores one or more instructions, and when the one or more instructions are executed by a quantum computer, the method according to any one of claims 1 to 7 is implemented.
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