Nonclassical microwave radiation from the dynamical Casimir effect
Artikel i vetenskaplig tidskrift, 2013

We investigate quantum correlations in microwave radiation produced by the dynamical Casimir effect in a superconducting waveguide terminated and modulated by a superconducting quantum interference device. We apply nonclassicality tests and evaluate the entanglement for the predicted field states. For realistic circuit parameters, including thermal background noise, the results indicate that the produced radiation can be strictly nonclassical and can have a measurable amount of intermode entanglement. If measured experimentally, these nonclassicality indicators could give further evidence of the quantum nature of the dynamical Casimir radiation in these circuits.

Författare

J. R. Johansson

RIKEN

Göran Johansson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

Christopher Wilson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Per Delsing

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

F. Nori

University of Michigan

RIKEN

Physical Review A - Atomic, Molecular, and Optical Physics

1050-2947 (ISSN) 1094-1622 (eISSN)

Vol. 87 4 Art. no. 043804- 043804

Quantum Propagating Microwaves in Strongly Coupled Environments (PROMISCE)

Europeiska kommissionen (FP7), 2012-04-01 -- 2015-03-31.

Ämneskategorier

Fysik

DOI

10.1103/PhysRevA.87.043804