Universal relations for the two-dimensional spin-1/2 Fermi gas with contact interactions

Manuel Valiente Cifuentes, Nikolaj T. Zinner, Klaus Molmer

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55 Citations (Scopus)


We present universal relations for a two-dimensional Fermi gas with pairwise contact interactions. The derivation of these relations is made possible by obtaining the explicit form of a generalized function-selector-in the momentum representation. The selector implements the short-distance boundary condition between two fermions in a straightforward manner and leads to simple derivations of the universal relations, in the spirit of Tan's original method for the three-dimensional gas.

Original languageEnglish
Article number063626
Number of pages4
JournalPhysical Review A
Issue number6
Publication statusPublished - 20 Dec 2011



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