Sachdev, SubirYang, Kun2019-09-272006Sachdev, Subir, and Kun Yang. 2006. “Fermi Surfaces and Luttinger’s Theorem in Paired Fermion Systems.” Physical Review B 73 (17). https://doi.org/10.1103/physrevb.73.174504.1098-01211550-235Xhttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41417239We discuss ground state properties of a mixture of two fermion species which can bind to form a molecular boson. When the densities of the fermions are unbalanced, one or more Fermi surfaces can appear: we describe the constraints placed by Luttinger's theorem on the volumes enclosed by these surfaces in such Bose-Fermi mixtures. We also discuss the nature of the quantum phase transitions involving changes in the number of Fermi surfaces.en-USJournal Article2019-09-2710.1103/PhysRevB.73.174504