Magnetostrictively Induced Stationary Entanglement between Two Microwave Fields

Title

Magnetostrictively Induced Stationary Entanglement between Two Microwave Fields

 Author

Yu, Mei (Zhejiang University)
Shen, Heng (University of Oxford; Shanxi University)
Li, J. (TU Delft QN/Groeblacher Lab; Kavli institute of nanoscience Delft; Zhejiang University)

Date

2020

 Abstract

We present a scheme to entangle two microwave fields by using the nonlinear magnetostrictive interaction in a ferrimagnet. The magnetostrictive interaction enables the coupling between a magnon mode (spin wave) and a mechanical mode in the ferrimagnet, and the magnon mode simultaneously couples to two microwave cavity fields via the magnetic dipole interaction. The magnon-phonon coupling is enhanced by directly driving the ferrimagnet with a strong red-detuned microwave field, and the driving photons are scattered onto two sidebands induced by the mechanical motion. We show that two cavity fields can be prepared in a stationary entangled state if they are, respectively, resonant with two mechanical sidebands. The present scheme illustrates a new mechanism for creating entangled states of optical fields and enables potential applications in quantum information science and quantum tasks that require entangled microwave fields.


 To reference this document use:

http://resolver.tudelft.nl/uuid:c31ddf58-5140-41b4-b28d-5bc0a2a8670e

 DOI

https://doi.org/10.1103/PhysRevLett.124.213604

 ISSN

0031-9007

 Source

Physical Review Letters, 124 (21)

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2020 Mei Yu, Heng Shen, J. Li
Files
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