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Entanglement of microwave-optical modes in a strongly coupled electro-optomechanical system

Journal Article · · Physical Review A
 [1];  [2];  [3];  [1]
  1. Univ. of Chicago, IL (United States); Yale Univ., New Haven, CT (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Yale Univ., New Haven, CT (United States)
  3. Yale Univ., New Haven, CT (United States)
Quantum transduction between microwaves and optics can be realized by quantum teleportation if given reliable microwave-optical entanglement, namely, entanglement-based quantum transduction. To realize this protocol, an entangled source with a high fidelity between the two frequencies is necessary. Here, we study microwave and optical entanglement generation based on a generic cavity electro-optomechanical system in the strong coupling regime. Splittings are shown in the microwave and optical output spectra and the frequency entanglement between the two modes is quantified. We show that entanglement can be straightforwardly encoded in the frequency-bin degree of freedom and propose a feasible experiment to verify entangled photon pairs. The experimental implementation is systematically analyzed, and the preferable parameter regime for entanglement verification is identified. An inequality is given as a criterion for good entanglement verification with analysis of practical imperfections.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); US Air Force Office of Scientific Research (AFOSR); US Air Force Office of Scientific Research (AFOSR) ; US Army Research Office (ARO); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; SC0019406
OSTI ID:
1664379
Alternate ID(s):
OSTI ID: 1606588
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 3 Vol. 101; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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