3D (three-dimensional) microwave resonant cavity comprising DC lead structure

A microwave resonant cavity, 3D technology, used in resonators, material analysis using microwave means, waveguide-type devices, etc., can solve problems such as inability to transmit quantum information, achieve good coupling effect, achieve precise control, and enhance electric field strength. Effect
CN104752803AInactive Publication Date: 2015-07-01UNIV OF SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SCI & TECH OF CHINA
Publication Date
2015-07-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a 3D (three-dimensional) microwave resonant cavity. The 3D microwave resonant cavity comprises a cavity body, a circuit board, an input port and an output port. The cavity body is rectangular and comprises a shell and a hollow cavity provided in the shell. The input port (3) and the output port penetrate the shell from the upper portion of the cavity body (1) and are communicated with the shell. One side of the cavity is provided with a narrow slot along extension direction of the cavity and facing the cavity. The circuit board comprises an external connecting part (2a) and an internal insert part; the external connecting part is wider, the internal insert part is narrower and elongated, and the internal insert part is inserted into the hollow cavity through the narrow slot. The internal insert part comprises a metal lead extending along an insertion direction, a quantum bit device mounting position located at the tail end of the internal insert part and an equipotential connecting line which connects the metal lead and the quantum bit device mounting position. The 3D microwave resonant cavity allows better coupling and allows quantum bit to be precisely controlled.
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Description

technical field

[0001] The invention relates to a microwave circuit device, in particular to a 3D microwave resonant cavity including a direct current lead structure. Background technique

[0002] The semiconductor quantum chip is based on the traditional semiconductor industry, making full use of quantum mechanical effects to realize the core components of high-efficiency parallel quantum computing. Qubits, which can be quantum dots or devices such as superconducting quantum interferometers, are the basic units on quantum chips that can store and manipulate quantum information. However, to complete the quantum computing process, it is also necessary to realize the coupling and data exchange between qubits, as well as the detection and readout of quantum information. Ordinary electronic circuits cannot transmit quantum information, so we need some special electronic components to achieve this function for us. Microwave resonators can excite and transmit microwave photons t...

Claims

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