Diagrammatic Pairing Fluctuations Approach to the BCS-BEC Crossover

Details Diagrammatic Pairing Fluctuations Approach to the BCS-BEC Crossover Diagrammatic Pairing Fluctuations Approach to the BCS-BEC Crossover

2010-11-25

arxiv.org/abs/1011.5615v1

Physics

Condensed Matter

Quantum Gases

32 pages, 13 fugures, chapter in "BCS-BEC Crossover and the Unitary Fermi Gas" (Lecture Notes in Physics), edited by Wilhelm Z

Scientific paper

This paper gives a survey of a diagrammatic approach for fermionic pairing fluctuations, which are relevant to the BCS-BEC crossover realized with ultracold Fermi gases. Emphasis will be given to the physical intuition about the relevant physical processes that can be associated with this approach. Specific results will be presented for thermodynamic and dynamical quantities, where a critical comparison with alternative diagrammatic approaches will also be attempted.

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