Coherence and correlation properties of a one-dimensional attractive Fermi gas

Details Coherence and correlation properties of a one-dimensional attractive Fermi gas Coherence and correlation properties of a one-dimensional attractive Fermi gas

2004-04-05

arxiv.org/abs/physics/0404025v1

Optics Communications 243 (2004) 81

Physics

Atomic Physics

Scientific paper

10.1016/j.optcom.2004.04.062

A recently developed Quantum Monte Carlo algorithm based on the stochastic evolution of Hartree-Fock states 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.

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