Einstein-Podolsky-Rosen-entangled Bose-Einstein condensates in state-dependent potentials: A dynamical study

2017/04/30 by Hadrien Kurkjian, Krzysztof Pawłowski, Krzysztof Pawlowski +1 · 6 citations
Computer Science · Mathematics · Physics and Astronomy · #Ansatz #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Dynamics (music) #Einstein #Fock space #Fock state #Mathematics #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum mechanics #State (computer science) #quant-ph

paper · pdf · doi:10.1103/physreva.96.013621

published in Physical Review A 96(1) (American Physical Society)

openalex created_date 2017/04/14 · openalex publication_date 2017/07/19 · arxiv created 2017/08/24 · arxiv updated 2017/08/25 · openalex updated_date 2026/08/05

Abstract

We study the generation of nonlocal correlations by atomic interactions in a pair of bimodal Bose-Einstein condensates in state-dependent potentials including spatial dynamics. The wave functions of the four components are described by combining a Fock state expansion with a time-dependent Hartree-Fock ansatz so that both the spatial dynamics and the local and nonlocal quantum correlations are accounted for. We find that despite the spatial dynamics, our protocol generates enough nonlocal entanglement to perform an Einstein-Podolsky-Rosen steering experiment with two spatially separated condensates of a few thousand atoms.

Citations

• Devil's crevasse and macroscopic entanglement in two-component Bose-Einstein condensates
• Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
• Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?
• Spin squeezing in a bimodal condensate: spatial dynamics and particle losses
• Steering, Entanglement, Nonlocality, and the Einstein-Podolsky-Rosen Paradox
• Binary mixtures of Bose-Einstein condensates: Phase dynamics and spatial dynamics