Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms

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dc.creatorDiehl, S.
dc.creatorMicheli, A.
dc.creatorKantian, A.
dc.creatorKraus, B.
dc.creatorBüchler, H. P.
dc.creatorZoller, P.
dc.date2008-03-10
dc.date.accessioned2026-07-07T13:15:19Z
dc.date.available2026-07-07T13:15:19Z
dc.descriptionAn open quantum system, whose time evolution is governed by a master equation, can be driven into a given pure quantum state by an appropriate design of the system-reservoir coupling. This points out a route towards preparing many body states and non-equilibrium quantum phases by quantum reservoir engineering. Here we discuss in detail the example of a \emph{driven dissipative Bose Einstein Condensate} of bosons and of paired fermions, where atoms in an optical lattice are coupled to a bath of Bogoliubov excitations via the atomic current representing \emph{local dissipation}. In the absence of interactions the lattice gas is driven into a pure state with long range order. Weak interactions lead to a weakly mixed state, which in 3D can be understood as a depletion of the condensate, and in 1D and 2D exhibits properties reminiscent of a Luttinger liquid or a Kosterlitz-Thouless critical phase at finite temperature, with the role of the ``finite temperature'' played by the interactions.
dc.description9 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0803.1482
dc.identifierhttp://arxiv.org/abs/0803.1482
dc.identifierNature Physics 4, 878 (2008)
dc.identifierdoi:10.1038/nphys1073
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230437
dc.subjectQuantum Physics
dc.subjectStatistical Mechanics
dc.subjectStrongly Correlated Electrons
dc.titleQuantum States and Phases in Driven Open Quantum Systems with Cold Atoms
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