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Showing 2012 · cond-mat.stat-mechShow all
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cond-mat.stat-mech2012★ 9 cited
Effective average action based approach to correlation functions at finite momenta
N. Hasselmann
We present a truncation scheme of the effective average action approach of the nonperturbative renormalization group which allows for an accurate description of the critical regime…
cond-mat.stat-mech2012★ 30 cited
Roton-Phonon Interactions in Superfluid 4He
B. Fak, T. Keller, M. E. Zhitomirsky +1
High-resolution neutron resonance spin-echo measurements of superfluid 4He show that the roton energy does not have the same temperature dependence as the inverse lifetime. Diagram…