Dilute Fermi and Bose Gases

Details Dilute Fermi and Bose Gases Dilute Fermi and Bose Gases

2011-05-09

arxiv.org/abs/1105.1793v1

Physics

Condensed Matter

Quantum Gases

28 pages, 8 figures; adapted from Chapter 16 of Quantum Phase Transitions, Second Edition (see http://sachdev.physics.harvar

Scientific paper

I give a unified perspective on the properties of a variety of quantum liquids using the theory of quantum phase transitions. A central role is played by a zero density quantum critical point which is argued to control the properties of the dilute gas. An exact renormalization group analysis of such quantum critical points leads to a computation of the universal properties of the dilute Bose gas and the spinful Fermi gas near a Feshbach resonance.

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