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arXiv · 2007.08365

Measurement of one-dimensional matter-wave quantum breather

Piotr Staroń·Andrzej Syrwid·Krzysztof Sacha
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Abstract

Employing the Bethe ansatz approach and numerical simulations of measurements of particles' positions we investigate a post-quench many-body dynamics of attractively interacting bosons on a ring, which in the mean-field approach corresponds to the so-called breather solution. Despite the fact that the initial many-body ground state is translationally invariant, the measurements reveal breather dynamics if quantum fluctuations of the center of mass of the system are extracted. Moreover, the analysis of the many-body evolution shows signatures of dissociation of the solitons that form the breather.

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Piotr Staroń, Andrzej Syrwid, Krzysztof Sacha. 2020-12-04. Measurement of one-dimensional matter-wave quantum breather. https://doi.org/10.1103/physreva.102.063308

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