Creating a supersolid in one-dimensional Bose mixtures

Details Creating a supersolid in one-dimensional Bose mixtures Creating a supersolid in one-dimensional Bose mixtures

2008-06-03

arxiv.org/abs/0806.0461v2

Physical Review A 79, 011602(R) (2009)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 5 figures, changed Fig. 4, and minor edits

Scientific paper

10.1103/PhysRevA.79.011602

We identify a one-dimensional supersolid phase in a binary mixture of near-hardcore bosons with weak, local inter-species repulsion. We find realistic conditions under which such a phase, defined here as the coexistence of quasi-superfluidity and quasi-charge density wave order, can be produced and observed in finite ultra-cold atom systems in a harmonic trap. Our analysis is based on Luttinger liquid theory supported with numerical calculations using the time-evolving block decimation method. Clear experimental signatures of these two orders can be found, respectively, in time-of-flight interference patterns, and the structure factor S(k) derived from density correlations.

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