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Quasi-long-range order in trapped systems

Crecchi, Federico and Vicari, Ettore (2011) Quasi-long-range order in trapped systems. Physical review. A, Atomic, Molecular, and Optical Physics, 83 . 035602. ISSN 1094-1622

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We investigate the effects of a trapping space-dependent potential on the low-temperature quasi-long-range order phase of two-dimensional particle systems with a relevant U(1) symmetry, such as quantum atomic gases. We characterize the universal features of the trap-size dependence using scaling arguments. The resulting scenario is supported by numerical Monte Carlo simulations of a classical two-dimensional XY model with a space-dependent hopping parameter whose inhomogeneity is analogous to that arising from the trapping potential in experiments of atomic gases.

Item Type: Article
Additional Information: Imported from arXiv
Subjects: Area02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici
Divisions: Dipartimenti (until 2012) > DIPARTIMENTO DI FISICA " E. FERMI"
Depositing User: dott.ssa Sandra Faita
Date Deposited: 09 Apr 2015 09:02
Last Modified: 09 Apr 2015 09:02
URI: http://eprints.adm.unipi.it/id/eprint/1768

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