Ground-state reference systems for expanding correlated fermions in one dimension

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dc.creatorHeidrich-Meisner, F.
dc.creatorRigol, M.
dc.creatorMuramatsu, A.
dc.creatorFeiguin, A. E.
dc.creatorDagotto, E.
dc.date2008-01-29
dc.date2008-07-18
dc.date.accessioned2026-07-07T09:50:48Z
dc.date.available2026-07-07T09:50:48Z
dc.descriptionWe study the sudden expansion of strongly correlated fermions in a one-dimensional lattice, utilizing the time-dependent density-matrix renormalization group method. Our focus is on the behavior of experimental observables such as the density, the momentum distribution function, and the density and spin structure factors. As our main result, we show that correlations in the transient regime can be accurately described by equilibrium reference systems. In addition, we find that the expansion from a Mott insulator produces distinctive peaks in the momentum distribution function at |k| ~ pi/2, accompanied by the onset of power-law correlations.
dc.description8 pages Revtex4, 7 eps-figures, minor changes, additional references, as published
dc.identifierhttps://arxiv.org/abs/0801.4454
dc.identifierhttp://arxiv.org/abs/0801.4454
dc.identifierPhys. Rev. A 78, 013620 (2008)
dc.identifierdoi:10.1103/PhysRevA.78.013620
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/165071
dc.subjectStrongly Correlated Electrons
dc.titleGround-state reference systems for expanding correlated fermions in one dimension
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