Unconventional quantum phases of lattice bosonic mixtures

Details Unconventional quantum phases of lattice bosonic mixtures Unconventional quantum phases of lattice bosonic mixtures

2008-07-28

arxiv.org/abs/0807.4534v2

Eur. Phys. J. B 68, 427 (2009)

Physics

Condensed Matter

Other Condensed Matter

10 pages, 2 figures - to appear in the topical issue on "Novel Quantum Phases and Mesoscopic Physics in Quantum Gases" of the

Scientific paper

10.1140/epjb/e2009-00056-0

We consider strongly interacting boson-boson mixtures on one-dimensional lattices and, by adopting a qualitative mean-field approach, investigate their quantum phases as the interspecies repulsion is increased. In particular, we analyze the low-energy "quantum emulsion" metastable states occurring at large values of the interspecies interaction, which are expected to prevent the system from reaching its true ground state. We argue a significant decrease in the visibility of the time-of-flight images in the case of these spontaneously disordered states.

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