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cond-mat2000★ 4 cited
Two-dimensional dilute Bose gas in the normal phase
P. Pieri, G. C. Strinati, I. Tifrea
We consider a two-dimensional dilute Bose gas above its superfluid transition temperature. We show that the t-matrix approximation corresponds to the leading set of diagrams in the…
cond-mat.str-el2000
Magnetic instability of a two-dimensional Anderson non-Fermi liquid
I. Tifrea, I. Grosu, M. Crisan
We show that in the Anderson model for a two-dimensional non-Fermi liquid a magnetic instability can lead to the itinerant electron ferromagnetism. The critical temperature and the…