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Open Quantum Systems Decoherence Quantum Simulation

Fermionic quantum carpets: From canals and ridges to solitonlike structures

arXiv

Authors: Piotr T. Grochowski, Tomasz Karpiuk, Mirosław Brewczyk, Kazimierz Rzążewski

Year

2018

Paper ID

23351

Status

Preprint

Abstract Read

~2 min

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Abstract

We report a formation of sharp, solitonlike structures in an experimentally accessible ultracold Fermi gas, as a quantum carpet solution is analyzed in a many body system. The effect is perfectly coherent in a noninteracting gas, but in the presence of repulsive interaction in a two-component system, the structures vanish at a finite time. As they disappear, the system enters a dynamical equilibrium, in which kinetic energies of atoms tend to the same average value. The coherence is revived in a strong interaction regime, with the onset of phase separation, and with a double quantum carpet appearing.

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We report a formation of sharp, solitonlike structures in an experimentally accessible ultracold Fermi gas, as a quantum carpet solution is analyzed in a many body system.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1811.05867 [2] arXiv https://arxiv.org/abs/1811.05867 [3] Publisher https://arxiv.org/abs/1811.05867

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