Segmented blade type ion trap device

Abstract

The invention discloses a segmented blade type ion trap device which comprises a base, a pair of RF electrodes and a pair of DC electrodes, the RF electrodes and the DC electrodes are installed on the base through a bottom plate, and the RF electrodes and the DC electrodes are made of metal materials; a groove is formed in the base, and the bottom plate is mounted in the groove; one end of the RF electrode and one end of the DC electrode are mounted on the bottom plate; the DC electrode is of a sectional structure, the DC electrode of the sectional structure is stabilized by a connecting assembly before being segmented, the connecting assembly comprises an insulating sheet and an insulating bolt, the insulating sheet is axially arranged on the side wall of the DC electrode, and the insulating bolt axially penetrates through the DC electrode. The all-metal blade with the electrode made of the metal material is adopted, no exposed substrate material exists in gaps of cutting lines of the blade, the stray electric field of the blade is reduced, and stable trapping of ions is facilitated.

Description

Technical Field

[0001] This invention relates to the field of ion trap device manufacturing technology, and in particular to a segmented blade-type ion trap device. Background Technology

[0002] Ion trap quantum computers are computers that utilize the principles of quantum mechanics and are considered one of the most promising methods for achieving scalable quantum computing, with the potential to surpass traditional computers. Blade traps are devices used to trap and manipulate ions. Compared to other types of ion traps, blade traps typically exhibit higher stability and better light transmission, making them widely used in scientific research, quantum computing, and other fields.

[0003] In blade-type ion traps, segmented DC electrodes play a crucial role in ion control and manipulation. These DC electrodes, together with RF (radio frequency) electrodes, form the electric field structure of the ion trap system, used to control ion movement and trapping position.

[0004] There are several existing designs for blade-type ion traps. One is to fix segmented blades with gold-plated ceramic by side circling, which is bulky and difficult to wire. Another is to not segment the blades, which has weaker operational capability. A third is to fix segmented electrodes on a ceramic support, but this method requires electrode alignment after segmentation, which is not very accurate. In addition, the ceramic support is bulky, so the working distance is long, which is not conducive to installation and increasing light transmission.

[0005] In summary, there is no existing technology that combines miniaturization, segmentation, and high precision with a pure metal blade-type ion trap device. Summary of the Invention

[0006] This invention provides a segmented blade-type ion trap device, the device comprising a base and a pair of RF electrodes and a pair of DC electrodes mounted on the base via a base plate, wherein:

[0007] Both the RF electrode and the DC electrode are made of metallic materials;

[0008] The base has a groove, and the bottom plate is installed in the groove;

[0009] One end of the RF electrode is mounted on the base plate, and one end of the DC electrode is mounted on the base plate;

[0010] The DC electrode has a segmented structure, and the segmented DC electrode is secured by a connecting component before segmentation. The connecting component includes an insulating sheet and an insulating pin. The insulating sheet is axially disposed on the side wall of the DC electrode, and the insulating pin is axially inserted through the DC electrode.

[0011] Both the RF electrode and the DC electrode include a blade body, wherein:

[0012] The blade body includes an integrally formed mounting part and a blade part. The cross-sectional area of ​​the mounting part is larger than that of the blade part, and the mounting part is mounted on the base plate.

[0013] The blade section has multiple pre-divided grooves.

[0014] The mounting part is provided with a first connecting hole and a through hole, wherein:

[0015] The first connecting hole is perpendicular to the through hole and they are connected to each other.

[0016] The DC electrode has multiple electrode slots on its blade portion, which extend to and are connected to multiple pre-divided slots.

[0017] The insulating pin shaft passes through the mounting portion and the blade portion of the DC electrode;

[0018] The insulating sheet is disposed on the side wall of the blade portion of the DC electrode.

[0019] The mounting portion of the RF electrode is connected to a connector, wherein:

[0020] The connector is provided with a second connecting hole, and the connector is screwed into the second connecting hole and the corresponding first connecting hole by screws.

[0021] The connector is made of metal and is connected to the RF wire of the device.

[0022] The base is made of insulating material and has grooves formed on it, wherein:

[0023] The groove divides the upper part of the base into four branch bases, and the groove is provided with an installation platform, on which the base plate is installed.

[0024] The four branch bases of the base are gold-plated to form a gold-plated surface.

[0025] The segmented blade-type ion trap device provided by this invention has the following beneficial effects:

[0026] 1. This invention overcomes the manufacturing method of all-metal DC segmented electrodes, greatly simplifying the electrode manufacturing process, enabling mass production, and improving electrode yield.

[0027] 2. In this invention, the electrode is made of an all-metal blade. There is no exposed substrate material in the gap of the blade's cutting line, which reduces the stray electric field of the blade and is beneficial to the stable trapping of ions.

[0028] 3. In this invention, the gold plating on the branch base of the base facilitates the discharge of accumulated surface charge, thereby reducing the impact on the stable trapping of ions. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 This is a front view schematic diagram of a segmented blade-type ion trap device according to an embodiment of the present invention;

[0031] Figure 2 This is a top view schematic diagram of a segmented blade-type ion trap device according to an embodiment of the present invention;

[0032] Figure 3 This is a top view of the base structure according to an embodiment of the present invention;

[0033] Figure 4 This is a top view of the base plate in an embodiment of the present invention.

[0034] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0037] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0038] like Figure 1 As shown, the present invention provides a segmented blade-type ion trap device, the device comprising a base 11 and a pair of RF electrodes 17 and a pair of DC electrodes 16 mounted on the base 11 via a base plate 13, wherein:

[0039] The base 11 has a groove 18, and the base plate 13 is installed in the groove 18; one end of the RF electrode 17 is installed on the base plate 13, and one end of the DC electrode 16 is installed on the base plate 13; the DC electrode 16 has a segmented structure, and the segmented DC electrode 16 is secured by a connecting assembly, wherein the connecting assembly includes an insulating sheet 8 and an insulating pin 9, the insulating sheet 8 is axially disposed on the side wall of the DC electrode 16, and the insulating pin 9 is axially inserted through the DC electrode 16.

[0040] The present invention will now be described in detail.

[0041] In some embodiments of the present invention, the ion trap device includes a blade trap mechanism including a base 11 and a pair of RF electrodes 17 and a pair of DC electrodes 16 mounted on the base 11 via a base plate 13. The pair of blade-type RF electrodes 17 and the pair of blade-type DC electrodes 16 are mounted on the base plate 13. In this embodiment, the base plate 13 is made of insulating materials such as quartz and glass.

[0042] In some embodiments of the present invention, such as Figure 1 As shown, both the RF electrode 17 and the DC electrode 16 include a blade body. Both the RF electrode 17 and the DC electrode 16 are made of metal material. That is, in this embodiment, the blade bodies of the RF electrode 17 and the DC electrode 16 are made of metal, and the material can be copper, copper alloy, etc.

[0043] In some embodiments of the present invention, in order to reliably fix the RF electrode 17 and the DC electrode 16 on the base 11, the blade body includes an integrally formed mounting part 4 and a blade part 6, wherein the cross-sectional area of ​​the mounting part 4 is larger than the cross-sectional area of ​​the blade part 6, and the mounting part 4 is mounted on the base plate 13.

[0044] In some embodiments of the present invention, the blade portion 6 retains a certain angle, and the angle of the blade portion 6 is between 10° and 45°.

[0045] In some embodiments of the present invention, the blade portion 6 is provided with a plurality of pre-divided grooves 2, and the mounting portion 4 is provided with a first connecting hole 3 and a through hole 5, wherein the first connecting hole 3 and the through hole 5 are perpendicular to each other and communicate with each other.

[0046] The following describes the differences between the RF electrode 17 and the DC electrode 16.

[0047] 1. RF electrode

[0048] In some embodiments of the invention, the RF electrode 17 corresponds to the first connecting hole 3 on the mounting portion 4 of the blade body, which serves to connect the RF electrode 17. The through hole 5 is for venting the connecting hole 3 in a vacuum. Furthermore, the first connecting hole 3 connects to the RF electrode 17 in the following manner:

[0049] A connector 20 is also connected to the mounting part 4 of the blade body corresponding to the RF electrode 17. The connector 20 is provided with a second connection hole 21. The connector 20 is screwed into the second connection hole 21 and the corresponding first connection hole 3 on the mounting part 4, so that the connector 20 can be installed on the mounting part 4 of the blade body corresponding to the RF electrode 17. The connector 20 is made of metal material and is connected to the RF wire of the device, so that the RF electrode 17 can be energized.

[0050] In some embodiments of the present invention, the RF electrode 17 corresponds to a plurality of pre-divided slots 2 in the blade portion 6 of the blade body, which will subsequently be used for segmentation of the DC electrode.

[0051] 2. DC electrode

[0052] In some embodiments of the present invention, such as Figure 2 As shown, the general-purpose blade body can be used directly as the RF electrode 17. When used as the DC electrode 16, some additional necessary processing is required to form... Figure 2 The diagram shows the structure of DC electrode 16.

[0053] Figure 2 The DC electrode 16 shown has at least two through holes 7 on the mounting part 4 of the corresponding blade body. Each through hole 7 extends through the blade part 6. When used as a DC electrode 16, two insulating pins 9 made of high-strength material are inserted into the two through holes 7. The insulating pins 9 are inserted through the mounting part 4 and the blade part of the DC electrode 16. In this embodiment, the insulating pins 9 are made of materials such as sapphire or ceramic.

[0054] In some embodiments of the present invention, the insulating sheet 8 is disposed on the side wall of the blade portion of the DC electrode 16, specifically: grooves are provided on both outer walls of the blade portion 6. Figure 1 Not shown in the text, but in the image Figure 1 See, it is horizontal, and there are multiple pre-segmented grooves 2), and they are bonded and fixed by insulating sheets 8 on both sides. The grooves can increase the friction after bonding, thereby stabilizing the segmented electrodes.

[0055] In some embodiments of the present invention, the blade portion 6 of the DC electrode 16 is provided with a plurality of electrode slots ( Figure 1 (Not shown in the image) Multiple electrode slots extend to and are connected to multiple pre-divided slots 2. Specifically, since the blade portion 6 of the DC electrode 16 is also provided with multiple pre-divided slots 2 for segmented electrodes, each pre-divided slot 2 is cut into electrode slots by processes such as cutting (the cutting method of the electrode slots is not limited in this invention), so that the entire blade portion 6 is divided into at least five segments of electrodes. For example, in the five segments of electrodes, the electrodes at both ends are used to provide axial binding force for ions, and the three middle electrodes are used to provide control over the position of the bound ions.

[0056] 3. Base

[0057] In some embodiments of the present invention, such as Figure 3 As shown, the base 11 is made of a low dielectric loss material, such as ceramic material. The base 11 has a groove 18, which divides the upper part of the base 11 into four branch bases. The groove 18 has a mounting platform 12, and the base plate 13 is mounted on the mounting platform 12.

[0058] In some embodiments of the present invention, the shape of the groove is configured to match the mounting portion 4 of the DC electrode 16 and the RF electrode 17, that is, the groove between each branch base can lock the mounting portion 4 of the DC electrode 16 and the RF electrode 17, thereby also serving a positioning function.

[0059] In some embodiments of the present invention, such as Figure 4 As shown, the base plate 13 includes four branch base plates, each branch 13 being located between every two adjacent branch bases 11, and the mounting portions 4 of the DC electrode 16 and the RF electrode 17 are both connected to the base plate 13.

[0060] In this embodiment, since ions are easily affected by stray electric fields in the trapped electric potential field, leading to instability of ion trapping, it is also necessary to ground the accumulated charge on the four branch bases.

[0061] In this embodiment, the method for grounding the charge accumulated on the four branch bases is as follows: the surfaces of the four branch bases of the base 11 are gold-plated to form gold-plated surfaces 111, and the charge accumulated on the gold-plated surfaces 111 on the four branch bases is discharged through wires; or holes are made on the four branch bases, the gold-plated surfaces 111 cover the holes, and then conductive posts are inserted into the holes, and then the charge accumulated on the gold-plated surfaces 111 on the branch bases is discharged through the conductive posts.

[0062] In summary, this invention proposes a novel all-metal segmented blade-type ion trap device, which solves the problems of low electrode yield caused by complex manufacturing processes in existing solutions and difficulty in discharging charges on the fixed substrate.

[0063] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A segmented blade-type ion trap device, characterized in that, The device includes a base (11) and a pair of RF electrodes (17) and a pair of DC electrodes (16) mounted on the base (11) via a base plate (13), wherein: Both the RF electrode (17) and the DC electrode (16) are made of metallic materials; The base (11) has a groove (18) and the bottom plate (13) is installed in the groove (18); One end of the RF electrode (17) is mounted on the base plate (13), and one end of the DC electrode (16) is mounted on the base plate (13); The DC electrode (16) has a segmented structure, and the segmented DC electrode (16) is secured by a connecting component before segmentation. The connecting component includes an insulating sheet (8) and an insulating pin (9). The insulating sheet (8) is axially disposed on the side wall of the DC electrode (16), and the insulating pin (9) is axially inserted through the DC electrode (16).

2. The segmented blade-type ion trap device as described in claim 1, characterized in that, Both the RF electrode (17) and the DC electrode (16) include a blade body, wherein: The blade body includes an integrally formed mounting part (4) and a blade part (6). The cross-sectional area of ​​the mounting part (4) is larger than that of the blade part (6). The mounting part (4) is mounted on the base plate (13).

3. The segmented blade-type ion trap device as described in claim 2, characterized in that, The blade section (6) has multiple pre-divided grooves (2).

4. A segmented blade-type ion trap device as described in claim 2, characterized in that, The mounting part (4) is provided with a first connecting hole (3) and a through hole (5), wherein: The first connecting hole (3) is perpendicular to the through hole (5) and they are connected to each other.

5. A segmented blade-type ion trap device as described in any one of claims 2-4, characterized in that, The DC electrode (16) has multiple electrode slots on its blade portion (6), which extend to multiple pre-divided slots (2) and are connected to each other.

6. A segmented blade-type ion trap device as described in claim 5, characterized in that, The insulating pin (9) passes through the mounting part (4) and the blade part of the DC electrode (16); The insulating sheet (8) is disposed on the side wall of the blade portion of the DC electrode (16).

7. A segmented blade-type ion trap device as described in claim 4, characterized in that, The mounting portion (4) of the RF electrode (17) is connected to a connector (20), wherein: The connector (20) is provided with a second connection hole (21), and the connector (20) is screwed into the second connection hole (21) and the corresponding first connection hole (3) by screws.

8. A segmented blade-type ion trap device as described in claim 7, characterized in that, The connector (20) is made of metal and is connected to the RF wire of the device.

9. A segmented blade-type ion trap device as described in any one of claims 2-4, characterized in that, The base (11) is made of insulating material, and a groove (18) is provided on the base (11), wherein: The groove (18) divides the upper part of the base (11) into four branch bases (11), and the groove (18) is provided with an installation platform (12), and the base plate (13) is installed on the installation platform (12).

10. A segmented blade-type ion trap device as described in claim 9, characterized in that, The four branch bases (11) of the base (11) are gold-plated to form a gold-plated surface (111).

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