TY - GEN

T1 - Expansion of Tonks-Girardeau gases on a one-dimensional optical lattice

AU - Rigol, Marcos

AU - Muramatsu, Alejandro

PY - 2006

Y1 - 2006

N2 - We study the free expansion of Tonks-Girardeau gases on one-dimensional lattices after removing the confining potential. We find that for low initial densities the momentum distribution of the expanding gas rapidly approaches the one of noninteracting fermions. In the opposite limit, i.e, when the initial system is a pure Mott insulator with one particle per lattice site, the expansion leads to the emergence of quasi-condensates at finite momentum. These traveling quasi-condensates develop quasi-long range one-particle correlations similar to the ones shown to be universal in the equilibrium case.

AB - We study the free expansion of Tonks-Girardeau gases on one-dimensional lattices after removing the confining potential. We find that for low initial densities the momentum distribution of the expanding gas rapidly approaches the one of noninteracting fermions. In the opposite limit, i.e, when the initial system is a pure Mott insulator with one particle per lattice site, the expansion leads to the emergence of quasi-condensates at finite momentum. These traveling quasi-condensates develop quasi-long range one-particle correlations similar to the ones shown to be universal in the equilibrium case.

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U2 - 10.1063/1.2354600

DO - 10.1063/1.2354600

M3 - Conference contribution

AN - SCOPUS:33947593807

SN - 0735403473

SN - 9780735403475

T3 - AIP Conference Proceedings

SP - 47

EP - 48

BT - LOW TEMPERATURE PHYSICS

T2 - LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24

Y2 - 10 August 2006 through 17 October 2006

ER -