二维声子腔的量子态。

Quantum Regime of a Two-Dimensional Phonon Cavity.

机构信息

Moscow Institute of Physics and Technology, Institutskiy Pereulok 9, Dolgoprudny 141701, Russia.

National University for Science and Technology (MISiS), Leninskiy Pereulok 4, Moscow 119049, Russia.

出版信息

Phys Rev Lett. 2018 Jun 1;120(22):223603. doi: 10.1103/PhysRevLett.120.223603.

DOI:10.1103/PhysRevLett.120.223603

PMID:29906147

Abstract

We realize the quantum regime of a surface acoustic wave (SAW) resonator by demonstrating vacuum Rabi mode splitting due to interaction with a superconducting artificial atom. Reaching the quantum regime is physically difficult and technologically challenging since SAW devices consist of large arrays of narrow metal strips. This work paves the way for realizing analogues of quantum optical phenomena with phonons and can be useful in on-chip quantum electronics.

摘要

我们通过展示与超导人工原子相互作用导致真空拉比模式分裂，实现了表面声波（SAW）谐振器的量子 regime。由于 SAW 器件由大量狭窄的金属条组成，因此达到量子 regime 在物理上是困难的，技术上也是具有挑战性的。这项工作为实现声子的量子光学现象的类似物铺平了道路，并可用于片上量子电子学。