Optically mediated entanglement between Bose-Einstein condensates

doi:10.3969/j.issn.1000-5641.2022.02.011

Abstract

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

CLC Number:

O431.2

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.

Figures/Tables 5

References 39

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