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Quantum chip, quantum data bus, microwave transmission line resonant cavity and preparation method

A technology of microwave transmission line and resonant cavity, which is applied in the direction of resonators, waveguides, waveguide-type devices, etc., can solve the problem of limited carrying capacity of microwave resonant cavity, and achieve the effect of reducing the complexity of structural design

Active Publication Date: 2017-08-18
UNIV OF SCI & TECH OF CHINA
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  • Application Information

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Problems solved by technology

[0003] However, the carrying capacity of ordinary microwave resonators is limited, and can only couple two to four qubits at most. Generally, the number of qubits that can be coupled by a quantum chip can only be increased by increasing the number of microwave resonators. This method will undoubtedly increase Reduced the complexity of quantum chip structure design

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  • Quantum chip, quantum data bus, microwave transmission line resonant cavity and preparation method
  • Quantum chip, quantum data bus, microwave transmission line resonant cavity and preparation method
  • Quantum chip, quantum data bus, microwave transmission line resonant cavity and preparation method

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] A microwave transmission line resonator, such as figure 1 , figure 2 and image 3 shown, including: substrate ( figure 1 Not shown in ), a central node 10 and at least three terminals 20 located on the surface of the substrate; wherein,

[0040] The central node 10 is connected to each of the terminals 20 through a transmission line 30, the length of any side of the central node 10 is greater than the width of the transmission line 30, and the dista...

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Abstract

The invention discloses a quantum chip, a quantum data bus, a microwave transmission line resonant cavity and a preparation method, wherein the microwave transmission line resonant cavity is started from the same central node, and the transmission line extends to multiple terminals; each terminal can be coupled to one or two quantum bits so as to increase the number of the quantum bits which can be coupled with the microwave transmission line resonant cavity; and in addition, compared with the microwave resonant cavity in the prior art, the microwave transmission line resonant cavity disclosed in the invention can be coupled with more quantum bits, without needing a way of increasing the number of the microwave resonant cavities to increase the number of the quantum bits which can be coupled with the quantum chip, so that the structural design complexity of the quantum chip which can be coupled with multiple quantum bits is lowered.

Description

technical field [0001] The present application relates to the technical field of microwave devices, and more specifically, to a quantum chip, a quantum data bus, a microwave transmission line resonant cavity and a preparation method. Background technique [0002] In the current mainstream solid-state qubit system, the microwave resonator is the preferred medium for coupling and information transmission between multiple qubits. It aggregates information that multiple qubits operate independently and are entangled with each other, so we call it the "quantum data bus". At present, the most widely used microwave resonator is the half-wavelength coplanar waveguide resonator. The qubits are placed at the two ends of the coplanar waveguide resonator, and the coupling between the qubits is enhanced by the nature of the antinode of the voltage. [0003] However, the carrying capacity of ordinary microwave resonators is limited, and can only couple two to four qubits at most. General...

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Application Information

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IPC IPC(8): H01P7/06H01P3/00H01P11/00
CPCH01P3/00H01P7/065H01P11/008
Inventor 郭国平杨鑫鑫贾志龙孔伟成段鹏薛光明
Owner UNIV OF SCI & TECH OF CHINA
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