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cond-mat.str-el2008★ 51 cited
Renormalization group flow for fermionic superfluids at zero temperature
P. Strack, R. Gersch, W. Metzner
We present a comprehensive analysis of quantum fluctuation effects in the superfluid ground state of an attractively interacting Fermi system, employing the attractive Hubbard mode…
cond-mat.str-el2008★ 38 cited
Renormalization group for phases with broken discrete symmetry near quantum critical points
P. Jakubczyk, P. Strack, A. A. Katanin +1
We extend the Hertz-Millis theory of quantum phase transitions in itinerant electron systems to phases with broken discrete symmetry. Using a set of coupled flow equations derived…