Coherence and correlation properties of a one-dimensional attractive Fermi gas
Year: 2004
Authors: Carusotto I., Castin Y.
Autors Affiliation: Ecole Normale Super, Lab Kastler Brossel, F-75231 Paris 05, France; Univ Trent, INFM, CRS BEC, I-38050 Trento, Italy; Univ Trent, Dipartimento Fis, I-38050 Trento, Italy.
Abstract: A recently developed quantum Monte Carlo algorithm based on the stochastic evolution of Hartree-Fock state has been applied to compute the static correlation functions of a one-dimensional model of attractively interacting two component fermions. The numerical results have been extensively compared to existing approximate approaches. The crossover to a condensate of pairs can be identified as the first-order pair coherence extending throughout the whole size of the system. The possibility of revealing the onset of the transition with other observables such as the density-density correlations or the second-order momentum space correlations is discussed. (C) 2004 Elsevier B.V. All rights reserved.
Journal/Review: OPTICS COMMUNICATIONS
Volume: 243 (1-6) Pages from: 81 to: 106
KeyWords: 2-dimensional Hubbard-model; Quantum Monte-carlo; Spin Gap; Superconductivity; Condensation; Atoms; State; MoleculesDOI: 10.1016/j.optcom.2004.04.062ImpactFactor: 1.581Citations: 10data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-24References taken from IsiWeb of Knowledge: (subscribers only)
