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 -