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arXiv · 1404.0647

Nonlinear Zeno dynamics due to atomic interactions in Bose-Einstein condensate

V. G. Navarro·V. S. Shchesnovich
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Abstract

We show that nonlinear interactions induce both the Zeno and anti-Zeno effects in the generalised Bose-Josephson model (with the on-site interactions and the second-order tunneling) describing Bose-Einstein condensate in double-well trap subject to particle removal from one of the wells. We find that the on-site interactions induce \textit{only} the Zeno effect, which appears at long evolution times, whereas the second-order tunneling leads to a strong decay of the atomic population at short evolution times, reminiscent of the anti-Zeno effect, and destroys the nonlinear Zeno effect due to the on-site interactions at long times.

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V. G. Navarro, V. S. Shchesnovich. 2014-09-03. Nonlinear Zeno dynamics due to atomic interactions in Bose-Einstein condensate. https://doi.org/10.1016/j.physb.2014.08.007

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