Measurement of a one-dimensional matter-wave quantum breather
| Autor: | Piotr Staroń, Krzysztof Sacha, Andrzej Syrwid |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Quantum Physics Breather Atomic Physics (physics.atom-ph) FOS: Physical sciences Invariant (physics) 01 natural sciences 010305 fluids & plasmas Bethe ansatz Physics - Atomic Physics Nonlinear Sciences::Exactly Solvable and Integrable Systems Quantum Gases (cond-mat.quant-gas) Quantum mechanics 0103 physical sciences Mathematics::Metric Geometry Matter wave 010306 general physics Ground state Condensed Matter - Quantum Gases Quantum Physics (quant-ph) Quantum Nonlinear Sciences::Pattern Formation and Solitons Quantum fluctuation Boson |
| Popis: | 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. Comment: 10 pages, 4 figures accepted for publication in Physical Review A |
| Databáze: | OpenAIRE |
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