Journal of East China Normal University(Natural Science) >

2022 , Vol. 2022 >Issue 2: 93 - 105

DOI: https://doi.org/10.3969/j.issn.1000-5641.2022.02.011

Physics and Electronics

Optically mediated entanglement between Bose-Einstein condensates

  • Shuai GAO ,
  • Matthew PREST ,
  • Ebubechukwu O. ILO-OKEKE ,
  • Manikandan KONDAPPAN ,
  • Juan E. ARISTIZABAL-ZULUAGA ,
  • Valentin IVANNIKOV ,
  • Tim BYRNES
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  • 1. State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai　200241, China
    2. Department of Physics, New York University Shanghai, Shanghai　200122, China
    3. Department of Physics, School of Science, Federal University of Technology, Imo State　460001, Nigeria
    4. Department of Precision Science and Natural Sciences, Institute of Physics, Universidad de Antioquia UdeA, Medellín　05001000, Colombia
    5. NYU-ECNU Institute of Physics at NYU Shanghai, Shanghai　200062, China
    6. National Institute of Informatics, Tokyo　101-8430, Japan
    7. Department of Physics, New York University, New York, NY　10003, USA

Received date: 2021-02-19

  Online published: 2022-03-28

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Abstract

This paper explores a method for generating optically mediated entanglement between Bose-Einstein condensates (BECs). Using a quantum nondemolition Hamiltonian with BECs placed in a Mach-Zehnder configuration, it is shown that entangled states can be induced by performing measurement on light. In particular, the effects of the entangled state in the presence of decoherence were analyzed. The behavior of the entangled state was found to be sensitive to the atom-light interaction time. The entangled state is relatively stable when the dimensionless interaction time $ \tau \lesssim \frac{1}{\sqrt{N}} $ and relatively fragile when the time is greater.

Key words： Bose-Einstein condensate; quantum nondemolition measurement; two-spin entangled state; decoherence

Cite this article

Shuai GAO , Matthew PREST , Ebubechukwu O. ILO-OKEKE , Manikandan KONDAPPAN , Juan E. ARISTIZABAL-ZULUAGA , Valentin IVANNIKOV , Tim BYRNES . Optically mediated entanglement between Bose-Einstein condensates[J]. Journal of East China Normal University(Natural Science), 2022 , 2022(2) : 93 -105 . DOI: 10.3969/j.issn.1000-5641.2022.02.011

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