Fermion- and Spin-Counting in Strongly Correlated Systems

Details Fermion- and Spin-Counting in Strongly Correlated Systems Fermion- and Spin-Counting in Strongly Correlated Systems

2008-02-28

arxiv.org/abs/0802.4276v1

Phys. Rev. A 78, 063613 (2008)

Physics

Quantum Physics

8 pages, 7 figures, RevTeX4

Scientific paper

10.1103/PhysRevA.78.063613

We apply the atom counting theory to strongly correlated Fermi systems and spin models, which can be realized with ultracold atoms. The counting distributions are typically sub-Poissonian and remain smooth at quantum phase transitions, but their moments exhibit critical behavior, and characterize quantum statistical properties of the system. Moreover, more detailed characterizations are obtained with experimentally feasible spatially resolved counting distributions.

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