Cavity magnomechanical storage and retrieval of quantum states

Bijita, Sarma, Thomas, Busch, Jason, Twamley

Abstract

We show how a quantum state in a microwave cavity mode can be transferred to and stored in a phononic mode via an intermediate magnon mode in a magnomechanical system. For this we consider a ferrimagnetic yttrium iron garnet (YIG) sphere inserted in a microwave cavity, where the microwave and magnon modes are coupled via a magnetic-dipole interaction and the magnon and phonon modes in the YIG sphere are coupled via magnetostrictive forces. By modulating the cavity and magnon detunings and the driving of the magnon mode in time, a stimulated Raman adiabatic passage-like coherent transfer becomes possible between the cavity mode and the phonon mode. The phononic mode can be used to store the photonic quantum state for long periods as it possesses lower damping than the photonic and magnon modes. Thus our proposed scheme offers a possibility of using magnomechanical systems as quantum memory for photonic quantum information.

source:https://iopscience.iop.org/article/10.1088/1367-2630/abf535

Journal

New Journal of Physics

New Journal of Physics 23 (4), 043041-, 2021-04-21

IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.

Keywords

Details 詳細情報について

CRID: 1050288757466460672

NII Article ID: 120007115840

ISSN: 13672630

Web Site: http://id.nii.ac.jp/1394/00001933/

Text Lang: en

Article Type: journal article

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