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Fang B, Carleo G, Johnson A, et al. Quench-induced breathing mode of one-dimensional Bose gases. Phys Rev Lett. 2014;113(3):035301doi: 10.1103/PhysRevLett.113.035301.
Fang, B., Carleo, G., Johnson, A., & Bouchoule, I. (2014). Quench-induced breathing mode of one-dimensional Bose gases. Physical review letters, 113(3), 035301. https://doi.org/10.1103/PhysRevLett.113.035301
Fang, Bess, et al. "Quench-induced breathing mode of one-dimensional Bose gases." Physical review letters vol. 113,3 (2014): 035301. doi: https://doi.org/10.1103/PhysRevLett.113.035301
Fang B, Carleo G, Johnson A, Bouchoule I. Quench-induced breathing mode of one-dimensional Bose gases. Phys Rev Lett. 2014 Jul 18;113(3):035301. doi: 10.1103/PhysRevLett.113.035301. Epub 2014 Jul 15. PMID: 25083651.
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Phys Rev Lett. 2014 Jul 18;113(3):035301. doi: 10.1103/PhysRevLett.113.035301. Epub 2014 Jul 15.

Quench-induced breathing mode of one-dimensional Bose gases.

Physical review letters

Bess Fang, Giuseppe Carleo, Aisling Johnson, Isabelle Bouchoule

Affiliations

  1. Laboratoire Charles Fabry, Institut d'Optique, CNRS, Université Paris Sud 11, 2 Avenue Augustin Fresnel, F-91127 Palaiseau Cedex, France.

PMID: 25083651 DOI: 10.1103/PhysRevLett.113.035301

Abstract

We measure the position- and momentum-space breathing dynamics of trapped one-dimensional Bose gases at finite temperature. The profile in real space reveals sinusoidal width oscillations whose frequency varies continuously through the quasicondensate to ideal Bose gas crossover. A comparison with theoretical models taking temperature into account is provided. In momentum space, we report the first observation of a frequency doubling in the quasicondensate regime, corresponding to a self-reflection mechanism due to the repulsive interactions. Such a mechanism is predicted for a fermionized system, and has not been observed to date. The disappearance of the frequency doubling through the crossover is mapped out experimentally, giving insights into the dynamics of the breathing evolution.

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