期刊
PHYSICAL REVIEW LETTERS
卷 123, 期 26, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.123.260402
关键词
-
资金
- Australian Research Council Centre of Excellence for Engineered Quantum Systems [CE1101013, CE170100009]
- Australian Research Council [DP160102085, DP160104965, DP150100356]
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies [CE170100039]
- Australian Government
- Australian Government Research and Training Program Scholarship
- Australian Research Council [CE1101013] Funding Source: Australian Research Council
We experimentally realize a highly tunable superfluid oscillator circuit in a quantum gas of ultracold atoms and develop and verify a simple lumped-element description of this circuit. At low oscillator currents, we demonstrate that the circuit is accurately described as a Helmholtz resonator, a fundamental element of acoustic circuits. At larger currents, the breakdown of the Helmholtz regime is heralded by a turbulent shedding of vortices and density waves. Although a simple phase-slip model offers qualitative insights into the circuit's resistive behavior, our results indicate deviations from the phase-slip model. A full understanding of the dissipation in superfluid circuits will thus require the development of empirical models of the turbulent dynamics in this system, as have been developed for classical acoustic systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据