可调低温微波腔内强磁子-光子耦合

C. Potts, J. Davis
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引用次数: 24

摘要

实现强耦合的能力使腔-磁振子系统成为开发混合量子系统和研究物理学基本问题的一个令人兴奋的平台。不幸的是,目前的实验实现被限制在单一频率下工作,由微波腔的几何形状定义。在这篇文章中,我们实现了一个高度可调谐的、低温的、与磁自旋强耦合的微波腔。腔体可以在原位调谐高达1.5 GHz,约为其原始10ghz谐振频率的15%。此外,该系统在所有频率上都保持在强耦合状态,协同性约为800。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Strong magnon–photon coupling within a tunable cryogenic microwave cavity
The ability to achieve strong-coupling has made cavity-magnon systems an exciting platform for the development of hybrid quantum systems and the investigation of fundamental problems in physics. Unfortunately, current experimental realizations are constrained to operate at a single frequency, defined by the geometry of the microwave cavity. In this article we realize a highly-tunable, cryogenic, microwave cavity strongly coupled to magnetic spins. The cavity can be tuned in situ by up to 1.5 GHz, approximately 15% of its original 10 GHz resonance frequency. Moreover, this system remains within the strong-coupling regime at all frequencies with a cooperativity of approximately 800.
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