Observation of single- and two-mode magnon thermal squeezing
Discuss this preprint
Start a discussion What are Sciety discussions?Listed in
This article is not in any list yet, why not save it to one of your lists.Abstract
Squeezed states are a cornerstone of quantum technology, widely employed to enhance precision measurements and enable novel information processing. While photon-based squeezing has been extensively studied, magnetic systems remain an untapped resource for squeezed-state engineering. Here, we demonstrate squeezing for magnetization dynamics in an yttrium iron garnet (Y3Fe5O12, YIG) film via microwave parametric excitation, achieving thermal squeezing. We also demonstrate thermal two-mode squeezing in the form of correlated fluctuations of magnons concentrated on the top and bottom surfaces of the YIG film. The unconventional magnetization highlights the promise of magnetic materials as a platform for quantum science in the foreseeable future.
