Zobrazeno 1 - 2
of 2
pro vyhledávání: '"Rentrop, Jan Frederik"'
Publikováno v:
Phys. Rev. B 93, 195160 (2016)
We study the renormalization group flow of the Luttinger-Ward functional and of its two-particle irreducible vertex functions, given a cut-off in the two-particle interaction. We derive a conserving approximation to the flow and relate it to the fluc
Externí odkaz:
http://arxiv.org/abs/1602.06120
Publikováno v:
J. Phys. A: Math. Theor. 48 (2015) 145002
We derive functional renormalization group schemes for Fermi systems which are based on the two-particle irreducible approach to the quantum many-body problem. In a first step, the cutoff is introduced in the non-interacting propagator as it is commo
Externí odkaz:
http://arxiv.org/abs/1501.00800