3.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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3 papers · 2 filters
Loss of superfluidity by fermions in the boson Hubbard model on an optical lattice
Roman M. Lutchyn, Sumanta Tewari, S. Das Sarma
The experimentally observed loss of superfluidity by introducing fermions to the boson Hubbard system on an optical lattice is explained. We show that the virtual transitions of th…
Boson Hubbard model with weakly coupled Fermions
R. M. Lutchyn, S. Tewari, S. Das Sarma
Using an imaginary-time path integral approach, we develop the perturbation theory suited to the boson Hubbard model, and apply it to calculate the effects of a dilute gas of spin-…
Effective masses in a strongly anisotropic Fermi liquid
Tudor D. Stanescu, Victor Galitski, H. D. Drew
Motivated by the recent experimental observation of quantum oscillations in the underdoped cuprates, we study the cyclotron and infrared Hall effective masses in an anisotropic Fer…