Device for coupling microwave resonance cavity with self-organization germanium-silicon nanowire quantum dots

Abstract

The invention discloses a device for coupling a microwave resonance cavity with self-organization germanium-silicon nanowire quantum dots. The device comprises a substrate structure, two or more self-organization germanium-silicon nanowire quantum dot electrode structures and a superconduction microwave resonance cavity structure, wherein the self-organization germanium-silicon nanowire quantum dot electrode structures are prepared on the substrate structure; the superconduction microwave resonance cavity structure is arranged on the substrate structure and coupled with the self-organization germanium-silicon nanowire quantum dot electrode structures. According to the device for coupling the microwave resonance cavity with self-organization germanium-silicon nanowire quantum dots, microwaves of the superconduction microwave resonance cavity are used as media, the multiple quantum dots can be coupled together and can be used as a quantum data bus for expansion and integration of a quantum chip, and a design through and a technical scheme are provided for constructing an expandable quantum chip with coupling of multiple quantum bit long ranges for a quantum computer.

Description

technical field [0001] The invention relates to the field of semiconductors, in particular to a microwave resonant cavity coupling self-organized germanium silicon nanowire quantum dot device. Background technique [0002] With the continuous development of the semiconductor industry, the scale of chips continues to shrink, and semiconductor chips have entered the nanometer level. Quantum effects have become a factor that cannot be ignored, affecting the accuracy and stability of chip operations, and derived quantum chips. At present, scientists have prepared quantum dot-based single nanowires on various semiconductor material systems such as gallium arsenide, silicon, germanium-silicon core-shell nanowires, indium arsenic nanowires, graphene, carbon nanotubes, and indium antimony nanowires. Qubit, the basic unit of a quantum chip. [0003] Self-organized germanium-silicon nanowires grown on non-doped silicon substrates by molecular epitaxial growth technology are a new typ...

AI Technical Summary

Problems solved by technology

However, due to the limited number of qubits on the quantum chips prepared so far, the computing power of the current quantum chips is also limited.

Coupling multiple quantum dots by direct coupling will weaken the coupling strength rapidly as the distance between quantum dots increases, so it is difficult to be used for large-scale integration and expansion of quantum chips

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