Superconducting coupling based super-flux sub-microwave generator and preparation method thereof

Abstract

The application discloses a superconducting coupling superflow sub-microwave generator and a preparation method thereof, and relates to a novel macroscopic quantum coupling mechanism. The superconducting coupling superflow sub-microwave generator of the application forms macroscopic quantum oscillation by coupling superflow through exciton superconductor. Further, electrodes are formed on the surface of the superconductor, and a voltage is applied between the electrodes, so that quantum oscillation is formed, and low-frequency microwave signals can be emitted, thereby providing a solid foundation for application fields such as quantum computing and quantum communication.

Description

Technical Field

[0001] This invention relates to a superconducting coupled superfluid quantum microwave generator and its fabrication method, belonging to the fields of quantum technology and superconducting technology. Background Technology

[0002] Traditional microwave generators are based on charge transfer between energy valleys in semiconductors. However, due to the high speed of electron movement, it is difficult to form low-frequency microwave generators. Superfluidity and superconductivity, as existing quantum substances, have had limited research on their coupling effects, but these effects hold enormous potential in fields such as quantum computing. In recent years, exciton insulators have been explored optically multiple times, and the emergence of exciton superconductivity is anticipated. Since excitons pair with electrons and holes, they can be obtained by combining electron-doped semiconductors with hole-doped semiconductors. Heterojunctions of two-dimensional materials with semiconductors and superconductors offer the possibility of exciton superconductivity. Furthermore, by fusing these exciton superconductors with exciton superfluidity, it is hoped to realize a macroscopically coupled superconducting-superfluid hybrid. This invention is based on this design and realizes a quantum microwave generator with exciton superfluidity coupled to superconductivity. Summary of the Invention

[0003] The purpose of this invention is to provide a superconducting coupled superfluid quantum microwave generator and its fabrication method. This generator is an exciton superfluid coupled superconducting quantum device capable of low-frequency microwave emission.

[0004] The technical solution adopted in this invention is as follows:

[0005] A method for fabricating a superconducting coupled superfluid quantum microwave generator is disclosed. This method involves stacking or doping novel materials, such as two-dimensional materials, to form an exciton insulator. Simultaneously, the exciton insulator is combined with a superconducting material to form an exciton-superfluid coupled superconducting quantum device. By injecting current into this device, a macroscopic quantum state in which superconducting current and exciton superfluid coexist is obtained. Due to the coupling between the superconducting quantum wave function and the superfluid quantum wave function, the macroscopic quantum state is driven to oscillate with phase, thereby realizing a quantum microwave generator.

[0006] The superconducting material can be one of NbN, Nb, superconducting Al, YBCO, superconducting diamond, etc., and the exciton superfluid can be a material stacked heterojunction superfluid. The material is selected from graphene, molybdenum disulfide (MoS2), tungsten disulfide (WS2), tungsten diselenide (WSe2), tungsten ditelluride (WTe2), etc. The combination of exciton superfluid and superconducting material can be achieved by transferring or directly growing the exciton superfluid on the superconducting material.

[0007] The beneficial effects of this invention compared to the prior art are:

[0008] Existing microwave generators are all based on semiconductor technology. Because electrons move very quickly in semiconductors, this limits the frequency range of microwave generators. Furthermore, while superconductivity and superfluidity technologies exist, technologies involving superconducting coupled with superfluidity, particularly exciton superfluidity, have not been reported. This invention combines these two aspects, proposing a superconducting and superfluid-integrated microwave generator, thereby realizing a novel quantum microwave generator capable of emitting low-frequency microwave signals. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a superconducting coupled superfluid quantum microwave generator prepared using the method of Example 1;

[0010] Figure 2 The image shows a low-frequency microwave oscillation curve prepared using the method described in Example 1, based on a superconducting coupled superfluid quantum microwave generator. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0012] Reference Figure 1 This invention discloses a superconducting-coupled superfluid quantum microwave generator. It utilizes material stacking to form an exciton superfluid, which is then grown or transferred to the surface of a superconducting material, thereby creating a superconducting-coupled superfluid composite material. By depositing electrodes on the surface and designing the electrode spacing according to different microwave emission frequency requirements—smaller electrodes result in higher emission frequencies—macroscopic quantum microwave generators with different microwave emission frequency bands can be obtained. This superconducting-coupled superfluid quantum microwave generator can effectively provide an experimental foundation for quantum computing and quantum communication, promoting the further development of quantum and microwave technologies.

[0013] Example 1:

[0014] 1) Take a superconducting diamond with a (100) crystal orientation and a size of 9 mm × 9 mm as a substrate, and polish the growth surface to ensure that the growth surface is smooth and flat;

[0015] 2) The substrate was sequentially immersed in acetone, isopropanol, ethanol and deionized water for ultrasonic cleaning. Each solvent was used for 10 min to remove organic impurities attached to the surface and then dried with N2.

[0016] 3) Transfer a layer of graphene onto the surface of superconducting diamond;

[0017] 4) A superconducting diamond / graphene heterostructure was prepared;

[0018] 5) 30nm Ti and 70nm gold are deposited on this heterostructure with an electrode spacing of 1mm to form a device.

[0019] The resistance of the superconducting coupled superfluid quantum microwave generator fabricated in this example varies with time as follows: Figure 2 As shown, this allows for the transmission of low-frequency microwave signals.

[0020] Example 2:

[0021] 1) Take a superconducting diamond with a (100) crystal orientation and a size of 5 mm × 5 mm as a substrate, and polish the growth surface to ensure that the growth surface is smooth and flat;

[0022] 2) The substrate was sequentially immersed in acetone, isopropanol, ethanol and deionized water for ultrasonic cleaning. Each solvent was used for 20 min to remove organic impurities attached to the surface and then dried with N2.

[0023] 3) Transfer a layer of MoS2 onto the surface of superconducting diamond;

[0024] 4) Transfer another layer of WTe2 onto the resulting surface.

[0025] 5) A superconducting diamond / MoS2 / WTe2 heterostructure was prepared.

[0026] 6) 30 nm Ti and 70 nm Au are deposited on this heterostructure with an electrode spacing of 100 micrometers to form a device, thereby obtaining a superconducting coupled superfluid quantum microwave generator.

[0027] Example 3:

[0028] 1) Take a superconducting diamond with a (100) crystal orientation and a size of 5 mm × 5 mm as a substrate, and polish the growth surface to ensure that the growth surface is smooth and flat;

[0029] 2) The substrate was sequentially immersed in acetone, isopropanol, ethanol and deionized water for ultrasonic cleaning. Each solvent was used for 10 min to remove organic impurities attached to the surface and then dried with N2.

[0030] 3) Transfer a layer of MoS2 onto the surface of superconducting diamond;

[0031] 4) Transfer another layer of WSe2 onto the resulting surface.

[0032] 5) A superconducting diamond / MoS2 / WSe2 heterostructure was prepared.

[0033] 6) 30 nm Ti and 70 nm Au are deposited on this heterostructure with an electrode spacing of 200 micrometers to form a device, thereby obtaining a superconducting coupled superfluid quantum microwave generator.

[0034] Example 4:

[0035] 1) Take an NbN substrate and polish the growth surface to ensure it is smooth and flat;

[0036] 2) The substrate was sequentially immersed in acetone, isopropanol, ethanol and deionized water for ultrasonic cleaning. Each solvent was used for 10 min to remove organic impurities attached to the surface and then dried with N2.

[0037] 3) Transfer a layer of MoS2 onto the surface of an NbN substrate;

[0038] 4) Transfer another layer of WSe2 onto the resulting surface.

[0039] 5) A NbN / MoS2 / WSe2 heterostructure was prepared.

[0040] 6) 30 nm Ti and 70 nm Au are deposited on this heterostructure with an electrode spacing of 400 micrometers to form a device, thereby obtaining a superconducting coupled superfluid quantum microwave generator.

[0041] It is obvious that this invention is not limited to the specific embodiments described above. Those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of this invention. The exemplary embodiments were chosen and described to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various exemplary embodiments of the invention, as well as various choices and modifications. The scope of this invention is intended to be defined by the claims and their equivalents.

Claims

1. A method for preparing a superconducting coupling superflux sub-microwave generator, characterized by, Forming exciton superfluid by material stacking or doping; Further compounding the exciton superfluid with superconductor material and preparing electrodes to inject current into the exciton superfluid to form superconducting current, obtaining macroscopic quantum state coexisting superconducting current and exciton superfluid, coupling the quantum wave function of superconducting and superfluid to obtain macroscopic quantum wave function oscillating with time, thereby emitting microwave to form microwave generator; said compounding exciton superfluid with superconductor material is transferring or growing said exciton superfluid on the superconductor material.

2. The preparation method of superconducting coupling super-current sub-microwave generator based on claim 1, characterized in that, Said superconductor material is one of NbN, Nb, superconducting Al, YBCO, superconducting diamond.

3. The preparation method of superconducting coupling super-current sub-microwave generator based on claim 1, characterized in that, Said exciton superfluid is material stacking heterojunction superfluid, said material is selected from graphene, molybdenum disulfide (MoS2), tungsten disulfide (WS2), tungsten diselenide (WSe2), tungsten ditelluride (WTe2).

4. The preparation method of superconducting coupling super-current sub-microwave generator based on claim 1, characterized in that, Said preparing electrodes is preparing metal electrodes on the exciton superfluid.

5. A superconducting coupling based super fluxon sub-microwave generator, characterized by, Prepared by the method of any one of claims 1-4.

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