Phys. Rev. Lett. 93, 230404 (2004) [4 pages]Emergence of Quasicondensates of Hard-Core Bosons at Finite MomentumReceived 16 March 2004; published 1 December 2004 An exact treatment of the nonequilibrium dynamics of hard-core bosons on one-dimensional lattices shows that, starting from a pure Fock-state, quasi–long-range correlations develop dynamically, and lead to the formation of quasicondensates at finite momenta. Scaling relations characterizing the quasicondensate and the dynamics of its formation are obtained. The relevance of our findings for atom lasers with full control of the wavelength by means of a lattice is discussed. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.230404
DOI:
10.1103/PhysRevLett.93.230404
PACS:
03.75.Kk, 03.75.Lm, 03.75.Pp, 05.30.Jp
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