TY - JOUR
T1 - Quantum distillation
T2 - Dynamical generation of low-entropy states of strongly correlated fermions in an optical lattice
AU - Heidrich-Meisner, F.
AU - Manmana, S. R.
AU - Rigol, M.
AU - Muramatsu, A.
AU - Feiguin, A. E.
AU - Dagotto, E.
PY - 2009/10/16
Y1 - 2009/10/16
N2 - Correlations between particles can lead to subtle and sometimes counterintuitive phenomena. We analyze one such case, occurring during the sudden expansion of fermions in a lattice when the initial state has a strong admixture of double occupancies. We promote the notion of quantum distillation: during the expansion and in the case of strongly repulsive interactions, doublons group together, forming a nearly ideal band insulator, which is metastable with low entropy. We propose that this effect could be used for cooling purposes in experiments with two-component Fermi gases.
AB - Correlations between particles can lead to subtle and sometimes counterintuitive phenomena. We analyze one such case, occurring during the sudden expansion of fermions in a lattice when the initial state has a strong admixture of double occupancies. We promote the notion of quantum distillation: during the expansion and in the case of strongly repulsive interactions, doublons group together, forming a nearly ideal band insulator, which is metastable with low entropy. We propose that this effect could be used for cooling purposes in experiments with two-component Fermi gases.
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U2 - 10.1103/PhysRevA.80.041603
DO - 10.1103/PhysRevA.80.041603
M3 - Article
AN - SCOPUS:70350131301
SN - 1050-2947
VL - 80
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
M1 - 041603
ER -