Migration of bosonic particles across a Mott insulator to superfluid phase interface

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dc.creatorHartmann, Michael J.
dc.creatorPlenio, Martin B.
dc.date2007-08-20
dc.date2008-01-14
dc.date.accessioned2026-07-07T09:21:38Z
dc.date.available2026-07-07T09:21:38Z
dc.descriptionWe consider a boundary between a Mott insulator and a superfluid region of a Bose-Hubbard model at unit filling. Initially both regions are decoupled and cooled to their respective ground states. We show that, after switching on a small tunneling rate between both regions, all particles of the Mott region migrate to the superfluid area. This migration takes place whenever the difference between the chemical potentials of both regions is less than the maximal energy of any eigenmode of the superfluid. We verify our results numerically with DMRG simulations and explain them analytically with a master equation approximation, finding good agreement between both approaches. Finally we carry out a feasibility study for the observation of the effect in coupled arrays of micro-cavities and optical lattices.
dc.description5 pages, 6 figures, to appear in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0708.2667
dc.identifierhttp://arxiv.org/abs/0708.2667
dc.identifierPhys. Rev. Lett. 100, 070602 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.070602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/155091
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.subjectQuantum Physics
dc.titleMigration of bosonic particles across a Mott insulator to superfluid phase interface
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