Adiabatic nonlinear probes of one-dimensional Bose gases

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dc.creatorDe Grandi, C.
dc.creatorBarankov, R. A.
dc.creatorPolkovnikov, A.
dc.date2008-04-24
dc.date2008-12-01
dc.date.accessioned2026-07-07T12:08:57Z
dc.date.available2026-07-07T12:08:57Z
dc.descriptionWe discuss two complementary problems: adiabatic loading of one-dimensional bosons into an optical lattice and merging two one-dimensional Bose systems. Both problems can be mapped to the sine-Gordon model. This mapping allows us to find power-law scalings for the number of excitations with the ramping rate in the regime where the conventional linear response approach fails. We show that the exponent of this power law is sensitive to the interaction strength. In particular, the response is larger, or less adiabatic, for strongly (weakly) interacting bosons for the loading (merging) problem. Our results illustrate that in general the nonlinear response to slow relevant perturbations can be a powerful tool for characterizing properties of interacting systems.
dc.description4 pages, 3 figures, final version
dc.identifierhttps://arxiv.org/abs/0804.4003
dc.identifierhttp://arxiv.org/abs/0804.4003
dc.identifierPhys. Rev. Lett. 101, 230402 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.230402
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/209473
dc.subjectOther Condensed Matter
dc.titleAdiabatic nonlinear probes of one-dimensional Bose gases
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