Superconducting coupling-based super-flow protons microwave generator and preparation method thereof

Abstract

The invention discloses a microwave generator based on superconducting coupling super-flux protons and a preparation method of the microwave generator, and relates to a novel macroscopic quantum coupling mechanism. According to the microwave generator based on the superconducting coupling super-flow protons, super-flow is coupled through an exciton superconductor, and macroscopic quantum oscillation is formed through in-vivo coupling. Furthermore, an electrode is formed on the surface of the superconductor, and voltage is applied to the two ends of the electrode, so that quantum oscillation is formed, low-frequency microwave signals can be emitted, and a solid foundation is provided for application fields such as quantum calculation and quantum communication.

Description

Technical Field

[0001] The present invention relates to a superconducting-coupled superfluid quantum microwave generator and a preparation method thereof, belonging to the fields of quantum technology and superconducting technology. Background Art

[0002] Traditional microwave generators are all based on the charge transfer between energy valleys of semiconductors. However, due to the relatively fast movement speed of electrons, it is difficult to form a low-frequency microwave generator. Superfluidity and superconductivity are existing quantum matters, and their coupling effects have rarely been studied, but their coupling effects have great development potential in the fields of quantum computing and the like. In recent years, exciton insulators have been explored optically many times, and exciton superconductivity is expected to appear. Since excitons are pairs of electrons and holes, they can be obtained by combining an electron-doped semiconductor with a hole-doped semiconductor. The heterojunctions of two-dimensional materials with semiconductors and superconductors give the possibility of exciton superconductivity. Further, by fusing these exciton superconductivities with exciton superfluidity, it is expected to realize a superconducting superfluid mixture of macroscopic coupled quantum states. Based on this design, the present invention realizes a quantum microwave generator with exciton superfluid coupling superconductivity. Summary of the Invention

[0003] The purpose of the present invention is to provide a superconducting-coupled superfluid quantum microwave generator and a preparation method thereof. The generator is a quantum device with exciton superfluid coupling superconductivity that can realize low-frequency microwave emission.

[0004] The technical solution adopted by the present invention is as follows: A preparation method of a superconducting-coupled superfluid quantum microwave generator. New materials such as two-dimensional materials are stacked or doped to form an exciton insulator. At the same time, the exciton insulator is compounded with a superconducting material to form a quantum device with exciton superfluid coupling superconductivity. By injecting current into this device, a macroscopic quantum state in which superconducting current and exciton superfluid coexist is obtained. Due to the coupling of the quantum wave function of superconductivity and the quantum wave function of superfluidity, the macroscopic quantum state is driven to oscillate and change with the phase, thereby realizing a quantum microwave generator.

[0005] Among them, the superconducting material can be one of NbN, Nb, superconducting Al, YBCO, superconducting diamond, etc. The exciton superfluid can be a material-stacked heterojunction superfluid. The materials are selected from graphene, molybdenum disulfide (MoS 2 ), tungsten disulfide (WS 2 ), tungsten diselenide (WSe 2 ), tungsten ditelluride (WTe 2 ), etc. The compounding of the exciton superfluid with the superconducting material can be transferring or directly growing the exciton superfluid on the superconducting material.

[0006] The beneficial effects of the present invention compared with the prior art are: Existing microwave generators are all based on semiconductor technology. Since electrons move very fast in semiconductors, this limits the frequency generation range of microwave generators. On the other hand, technologies related to superconductivity and superfluidity already exist, but technologies related to superconducting coupling with superfluidity, especially exciton superfluidity, have not been reported yet. Combining these two points, the present invention proposes a microwave generator with superconducting fusion of superfluidity, thus realizing a new type of quantum microwave generator capable of emitting low-frequency microwave signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Schematic diagram of a superconducting-coupled superfluid quantum microwave generator prepared by the method of Example 1; Figure 2 Low-frequency microwave oscillation curve of a superconducting-coupled superfluid quantum microwave generator prepared by the method of Example 1. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0008] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0009] Refer to Figure 1 , a superconducting-coupled superfluid quantum microwave generator of the present invention forms an exciton superfluid by stacking materials, and then grows or transfers the exciton superfluid to the surface of a superconducting material, thereby forming a composite material of superconducting coupling with superfluidity. And by depositing electrodes on the surface and designing the electrode spacing according to different microwave emission frequency requirements, the smaller the electrode, the higher the emission frequency, so as to obtain a macroscopic quantum microwave generator with different microwave emission frequency bands. A superconducting-coupled superfluid quantum microwave generator of the present invention can effectively provide an experimental basis for quantum computing and quantum communication, and promote the further development of quantum technology and microwave technology.

[0010] Example 1:

[0011] 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; 2) Put the substrate into acetone, isopropanol, ethanol and deionized water in turn, and ultrasonically clean the surface of the substrate in each solvent for 10 min to remove organic impurities attached to the surface, and dry it with N 2 blow dry; 3) Transfer a layer of graphene onto the superconducting diamond surface; 4) Prepare a superconducting diamond / graphene heterostructure; 5) Deposit 30 nm of Ti and 70 nm of gold on this heterostructure, and the electrode spacing is 1 mm, thereby forming a device.

[0012] A superconducting-coupled superfluid quantum microwave generator prepared in this example has a resistance change relationship with time as shown in Figure 2 shown, and thus can emit low-frequency microwave signals.

[0013] Example 2: 1) Take a superconducting diamond with a (100) crystal orientation and a size of 5 mm × 5 mm as the substrate, and polish the growth surface to ensure that the growth surface is smooth and flat; 2) Sequentially place the substrate in acetone, isopropanol, ethanol, and deionized water, and ultrasonically clean the substrate surface in each solvent for 20 min to remove organic impurities attached to the surface, and blow dry with N 2 ; 3) Transfer a layer of MoS 2 ; 4) Then transfer a layer of WTe 2 ;

[0014] 5) Prepare a superconducting diamond / MoS 2 / WTe 2 heterostructure.

[0015] 6) Deposit 30 nm of Ti and 70 nm of Au on this heterostructure, with an electrode spacing of 100 microns, thereby forming a device to obtain a superconducting-coupled superfluid quantum microwave generator.

[0016] Example 3: 1) Take a superconducting diamond with a (100) crystal orientation and a size of 5 mm × 5 mm as the substrate, and polish the growth surface to ensure that the growth surface is smooth and flat; 2) Sequentially place the substrate in acetone, isopropanol, ethanol, and deionized water, and ultrasonically clean the substrate surface in each solvent for 10 min to remove organic impurities attached to the surface, and blow dry with N 2 ; 3) Transfer a layer of MoS 2 ; 4) Then transfer a layer of WSe 2 ;

[0017] 5) Prepare a superconducting diamond / MoS 2 / WSe 2 heterostructure.

[0018] 6) Deposit 30 nm of Ti and 70 nm of Au on this heterostructure, with an electrode spacing of 200 microns, thereby forming a device to obtain a superconducting-coupled superfluid quantum microwave generator.

[0019] Example 4: 1) Take a piece of NbN as the substrate, and polish the growth surface to ensure that the growth surface is smooth and flat; 2) Sequentially place the substrate into acetone, isopropyl alcohol, ethanol, and deionized water, and ultrasonically clean the surface of the substrate in sequence for 10 minutes in each solvent to remove the organic impurities attached to the surface, and dry it with N 2 blow dry; 3) Transfer a layer of MoS on the surface of the NbN substrate 2 ; 4) Then transfer a layer of WSe on the obtained surface 2 ;

[0020] 5) Prepare the NbN / MoS 2 / WSe 2 heterostructure.

[0021] 6) Deposit 30 nm of Ti and 70 nm of Au on this heterostructure, and the electrode spacing is 400 microns, thereby forming a device to obtain a superconducting-coupled supercurrent quantum microwave generator.

[0022] Obviously, the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A method for preparing a superconducting coupled superflux quantum microwave generator, characterized in that: Forming exciton superfluids by stacking or doping materials; The exciton superfluid is further compounded with superconductor materials and electrodes are prepared, so that current is injected into the exciton superfluid to form a superconducting current, and a macroscopic quantum state in which the superconducting current and the exciton superfluid coexist is obtained. Since the quantum wave function of the superconductor and the quantum wave function of the superfluid are coupled, a macroscopic quantum wave function that oscillates with time is obtained, which can emit microwaves to form a microwave generator.

2. The method for preparing a superconducting coupled superflux quantum microwave generator according to claim 1, characterized in that: The superconductor material is one of NbN, Nb, superconducting Al, YBCO and superconducting diamond.

3. The method for preparing a superconducting coupled superflux quantum microwave generator according to claim 1, characterized in that: The exciton superfluid is a material stacking heterojunction superfluid, and the material is selected from graphene, molybdenum disulfide (MoS2), tungsten disulfide (WS2), tungsten diselenide (WSe2), and tungsten ditelluride (WTe2).

4. The method for preparing a superconducting coupled superflux quantum microwave generator according to claim 1, characterized in that: The compounding of the exciton superfluid and the superconductor material is transferring or growing the exciton superfluid on the superconductor material.

5. The method for preparing a superconducting coupled superflux quantum microwave generator according to claim 1, characterized in that: The electrode preparation is to prepare a metal electrode on the exciton superfluid.

6. A superconducting coupled superflux quantum microwave generator, characterized in that: The method is prepared by the method according to any one of claims 1 to 5.

Images