Time-of-flight observables and the formation of Mott domains of fermions and bosons on optical lattices
- Physics Department, University of California, Davis, California 95616 (United States)
- Department of Physics, University of Southern California, Los Angeles, California 90089 (United States)
- Institut Non-Lineaire de Nice, UMR 6618 CNRS, Universite de Nice-Sophia Antipolis, 1361 route des Lucioles, 06560 Valbonne (France)
We study, using quantum Monte Carlo simulations, the energetics of the formation of Mott domains of fermions and bosons trapped on one-dimensional lattices. We show that, in both cases, the sum of kinetic and interaction energies exhibits minima when Mott domains appear in the trap. In addition, we examine the derivatives of the kinetic and interaction energies, and of their sum, which display clear signatures of the Mott transition. We discuss the relevance of these findings to time-of-flight experiments that could allow the detection of the metal-Mott-insulator transition in confined fermions on optical lattices, and support established results on the superfluid-Mott-insulator transition in confined bosons on optical lattices.
- OSTI ID:
- 20788023
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 73, Issue 12; Other Information: DOI: 10.1103/PhysRevB.73.121103; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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