Emergence of quantum chaos in finite interacting Fermi systems

Details Emergence of quantum chaos in finite interacting Fermi systems Emergence of quantum chaos in finite interacting Fermi systems

1997-06-05

arxiv.org/abs/cond-mat/9706040v1

Physics

Condensed Matter

revtex, 4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.79.1837

We study the level spacing statistics P(s) in many-body Fermi systems and
determine a critical two-body interaction strength Uc at which a crossover from
Poisson to Wigner-Dyson statistics takes place. Near the Fermi level the
results allow to find a critical temperature Tch above which quantum chaos and
thermalization set in.

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