Deconfinement and quantum liquid crystalline states of dipolar fermions in optical lattices

Details Deconfinement and quantum liquid crystalline states of dipolar fermions in optical lattices Deconfinement and quantum liquid crystalline states of dipolar fermions in optical lattices

2009-03-03

arxiv.org/abs/0903.0590v1

Physics

Condensed Matter

Strongly Correlated Electrons

Invited paper for CMT32, to appear in the Int. J. Mod. Phys.B, 13 pages

Scientific paper

We describe a simple model of fermions in quasi-one dimension that features interaction induced deconfinement (a phase transition where the effective dimensionality of the system increases as interactions are turned on) and which can be realised using dipolar fermions in an optical lattice. The model provides a relisation of a "soft quantum matter" phase diagram of strongly-correlated fermions, featuring meta-nematic, smectic and crystalline states, in addition to the normal Fermi liquid. In this paper we review the model and discuss in detail the mechanism behind each of these transitions on the basis of bosonization and detailed analysis of the RPA susceptibility.

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