Quantum distillation: Dynamical generation of low-entropy states of strongly correlated fermions in an optical lattice

F. Heidrich-Meisner, S. R. Manmana, M. Rigol, A. Muramatsu, A. E. Feiguin, E. Dagotto

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Article number041603
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume80
Issue number4
DOIs
StatePublished - Oct 16 2009

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distillation
fermions
entropy
expansion
admixtures
insulators
cooling
gases
interactions

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

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Quantum distillation : Dynamical generation of low-entropy states of strongly correlated fermions in an optical lattice. / Heidrich-Meisner, F.; Manmana, S. R.; Rigol, M.; Muramatsu, A.; Feiguin, A. E.; Dagotto, E.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 80, No. 4, 041603, 16.10.2009.

Research output: Contribution to journalArticle

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AU - Heidrich-Meisner, F.

AU - Manmana, S. R.

AU - Rigol, M.

AU - Muramatsu, A.

AU - Feiguin, A. E.

AU - Dagotto, E.

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