Zagoskin_PhysRevB.100.144506.pdf (455.97 kB)
0/0

Entangling continuous variables with a qubit array

Download (455.97 kB)
journal contribution
posted on 15.10.2019 by Patrick Navez, Artur Sowa, Alexandre Zagoskin
We show that an array of qubits embedded in a waveguide can emit entangled pairs of microwave photon beams. The quadratures obtained from a homodyne detection of these outputs beams form a pair of correlated continuous variables similarly to the EPR experiment. The photon pairs are produced by the decay of plasmon-like collective excitations in the qubit array. The maximum intensity of the resulting beams is only bounded by the number of emitters. We calculate the excitation decay rate both into a continuum of photon state and into a one-mode cavity. We also determine the frequency of Rabi-like oscillations resulting from a detuning.

Funding

NDIAS Residential Fellowship (University of Notre Dame).

History

School

  • Science

Department

  • Physics

Published in

Physical Review B: Condensed Matter and Materials Physics

Volume

100

Publisher

American Physical Society

Version

VoR (Version of Record)

Rights holder

© American Physical Society

Publisher statement

This paper was accepted for publication in the journal Physical Review B: Condensed Matter and Materials Physics and the definitive published version is available at https://doi.org/10.1103/PhysRevB.100.144506

Acceptance date

26/09/2019

Publication date

2019-10-14

Copyright date

2019

Notes

5 pages, 3 figures

ISSN

1098-0121

Language

en

Depositor

Dr Alexandre Zagoskin

Article number

144506

Exports

Logo branding

Categories

Exports