Erratum: Non-equilibrium scale invariance and shortcuts to adiabaticity in a one-dimensional Bose gas

We present experimental evidence for scale invariant behaviour of the excitation spectrum in phase-fluctuating quasi-1d Bose gases after a rapid change of the external trapping potential. Probing density correlations in free expansion, we find that the temperature of an initial thermal state scales...

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Bibliographic Details
Published in:Scientific reports 2015-07, Vol.5 (1), p.10506-10506, Article 10506
Main Authors: Rohringer, W., Fischer, D., Steiner, F., Mazets, I. E., Schmiedmayer, J., Trupke, M.
Format: Article
Language:English
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639/766/119/2791
639/766/36/1125
639/766/483/3924
639/766/530/951
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Humanities and Social Sciences
multidisciplinary
Science
Science (multidisciplinary)
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Summary:We present experimental evidence for scale invariant behaviour of the excitation spectrum in phase-fluctuating quasi-1d Bose gases after a rapid change of the external trapping potential. Probing density correlations in free expansion, we find that the temperature of an initial thermal state scales with the spatial extension of the cloud as predicted by a model based on adiabatic rescaling of initial eigenmodes with conserved quasiparticle occupation numbers. Based on this result, we demonstrate that shortcuts to adiabaticity for the rapid expansion or compression of the gas do not induce additional heating.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep10506