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Renormalization-group fixed points, universal phase diagram, and1∕Nexpansion for quantum liquids with interactions near the unitarity limit
2007
Physical Review A. Atomic, Molecular, and Optical Physics
It has long been known that particles with short-range repulsive interactions in spatial dimension d=1 form universal quantum liquids in the low density limit: all properties can be related to those of the spinless free Fermi gas. Previous renormalization group (RG) analyses demonstrated that this universality is described by an RG fixed point, infrared stable for d<2, of the zero density gas. We show that for d>2 the same fixed point describes the universal properties of particles with
doi:10.1103/physreva.75.033608
fatcat:r7363fzjyzgptjeercbfzaqrdi