Density Operators for Fermions

Details Density Operators for Fermions Density Operators for Fermions

1998-08-23

arxiv.org/abs/physics/9808029v1

Phys. Rev. A59 (1999) 1538

Physics

Atomic Physics

45 pages, latex

Scientific paper

10.1103/PhysRevA.59.1538

The mathematical methods that have been used to analyze the statistical properties of boson fields, and in particular the coherence of photons in quantum optics, have their counterparts for Fermi fields. The coherent states, the displacement operators, the P-representation, and the other operator expansions all possess surprisingly close fermionic analogues. These methods for describing the statistical properties of fermions are based upon a practical calculus of anti-commuting variables. They are used to calculate correlation functions and counting distributions for general systems of fermions.

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