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Phys. Rev. A 79, 023614 (2009) [13 pages]

Lieb-Liniger model of a dissipation-induced Tonks-Girardeau gas

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S. Dürr1, J. J. García-Ripoll1,2, N. Syassen1, D. M. Bauer1, M. Lettner1, J. I. Cirac1, and G. Rempe1
1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany
2Facultad de Físicas, Universidad Complutense, Ciudad Universitaria s/n, Madrid 28040, Spain

Received 22 September 2008; published 10 February 2009

We show that strong inelastic interactions between bosons in one dimension create a Tonks-Girardeau gas, much as in the case of elastic interactions. We derive a Markovian master equation that describes the loss caused by the inelastic collisions. This yields a loss rate equation and a dissipative Lieb-Liniger model for short times. We obtain an analytic expression for the pair correlation function in the limit of strong dissipation. Numerical calculations show how a diverging dissipation strength leads to a vanishing of the actual loss rate and renders an additional elastic part of the interaction irrelevant.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.79.023614
DOI:
10.1103/PhysRevA.79.023614
PACS:
03.75.Lm, 05.30.Jp, 37.10.Jk