Towards experimental observation of parametrically squeezed states of microwave magnons in yttrium iron garnet films

被引：14
|
作者：
Kostylev, M. [1 ]
Ustinov, A. B. [2 ]
Drozdovskii, A., V [2 ]
Kalinikos, B. A. [2 ]
Ivanov, E. [1 ]
机构：
[1] Univ Western Australia, Dept Phys, Crawley, WA 6009, Australia
[2] St Petersburg Electrotech Univ LETI, Dept Phys Elect & Technol, St Petersburg 197376, Russia
来源：
PHYSICAL REVIEW B | 2019年 / 100卷 / 02期
关键词：
LIGHT; GENERATION; FIELDS;
D O I：
10.1103/PhysRevB.100.020401
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We demonstrate theoretically and confirm experimentally that nonlinear spin waves excited in thin yttrium iron garnet films are good candidates for squeezing vacuum quantum noise. The experimental demonstration is in the form of a measurement of spin-wave induced modulation instability (IMI) conducted in the classical regime. The experiment evidences strong phase locking of an idler wave parametrically generated in the film with a deterministic small-signal wave launched into the film from an external source. The theory predicts that the same behavior will be observed for vacuum quantum noise, resulting in squeezing of the noise.
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页数：5
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