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arXiv · 1811.06612

Nonlocal pair correlations in a higher-order Bose gas soliton

King Lun Ng·Bogdan Opanchuk·Margaret D. Reid·Peter D. Drummond
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Abstract

The truncated Wigner and positive-P phase-space representations are used to study the dynamics of a one-dimensional Bose gas. This allows calculations of the breathing quantum dynamics of higher-order solitons with 10^{3}-10^{5} particles, as in realistic Bose-Einstein condensation (BEC) experiments. Although classically stable, these decay quantum mechanically. Our calculations show that there are large nonlocal correlations. These also violate the Cauchy-Schwarz inequality, showing the presence of nonclassical quantum entanglement.

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King Lun Ng, Bogdan Opanchuk, Margaret D. Reid, Peter D. Drummond. 2018-11-15. Nonlocal pair correlations in a higher-order Bose gas soliton. https://doi.org/10.1103/physrevlett.122.203604

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