Results 11 to 20 of about 1,476,489 (293)

Wave Functionals, Hamiltonians and Renormalization Group [PDF]

Int.J.Mod.Phys. A11 (1996) 2749-2764, 1994
We analyze the renormalization of wave functionals and energy eigenvalues in field theory. A discussion of the structure of the renormalization group equation for a general Hamiltonian system is also given.
V. P. Nair, D.Minic
arxiv   +5 more sources

Properties of the linearized functional renormalization group

Physical Review D, 2022
19 ...
T. Morris
semanticscholar   +3 more sources

Renormalization Group Functional Equations

Physical Review D, 2010
Functional conjugation methods are used to analyze the global structure of various renormalization group trajectories, and to gain insight into the interplay between continuous and discrete rescaling.
A. B. Zamolodchikov, A. M. Polyakov, Cosmas K. Zachos, E. C. G. Stueckelberg, E. C. G. Stueckelberg, M. Kuczma, M. Kuczma, P. Collet, R. L. Devaney, S. Coleman, T. D. Lee, Thomas L. Curtright   +11 more
core   +4 more sources

Multiloop functional renormalization group approach to quantum spin systems [PDF]

Physical Review Research, 2022
Renormalization group methods are well-established tools for the (numerical) investigation of the low-energy properties of correlated quantum many-body systems, allowing us to capture their scale-dependent nature.
Dominik Kiese, Tobias Müller, Yasir Iqbal, Ronny Thomale, Simon Trebst   +4 more
doaj   +2 more sources

Kagome Hubbard model from a functional renormalization group perspective [PDF]

Physical Review Research
The recent discovery of a variety of intricate electronic order in kagome metals has sprouted significant theoretical and experimental interest. From an electronic perspective on the potential microscopic origin of these phases, the most basic model is ...
Jonas B. Profe, Lennart Klebl, Francesco Grandi, Hendrik Hohmann, Matteo Dürrnagel, Tilman Schwemmer, Ronny Thomale, Dante M. Kennes   +7 more
doaj   +2 more sources

Better integrators for functional renormalization group calculations [PDF]

The European Physical Journal B, 2022
We analyze a variety of integration schemes for the momentum space functional renormalization group calculation with the goal of finding an optimized scheme.
Jacob Beyer, F. Goth, T. Müller
semanticscholar   +5 more sources

Functional renormalization group approach to the four-body problem [PDF]

EPJ Web of Conferences, 2010
We present a renormalization group analysis of the non-relativistic four-boson problem by means of a simple model with pointlike three- and four-body interactions. We investigate in particular the unitarity point where the scattering length is infinite
Moroz S., Schmidt R.
doaj   +2 more sources

The spatial Functional Renormalization Group and Hadamard states on cosmological spacetimes [PDF]

Nuclear Physics B, 2022
A spatial variant of the Functional Renormalization Group (FRG) is introduced on (Lorentzian signature) globally hyperbolic spacetimes. Through its perturbative expansion it is argued that such a FRG must inevitably be state dependent and that it should ...
R. Banerjee, M. Niedermaier
doaj   +2 more sources

The nonperturbative functional renormalization group and its applications [PDF]

Physics Reports, 2020
v3) Review article, 93 pages + bibliography, 35 ...
N. Dupuis, L. Canet, A. Eichhorn, W. Metzner, J. Pawlowski, M. Tissier, N. Wschebor   +6 more
semanticscholar   +8 more sources

Introduction to the nonequilibrium functional renormalization group [PDF]

Nuclear Physics B - Proceedings Supplements, 2012
In these lectures we introduce the functional renormalization group out of equilibrium. While in thermal equilibrium typically a Euclidean formulation is adequate, nonequilibrium properties require real-time descriptions. For quantum systems specified by
Aarts, Anders, Aoki, Arrizabalaga, Bagnuls, Berges, Berges, Berges, Berges, Berges, Berges, Berges, Berges, Berges, Berges, Berges, Berges, Berloff, Blaizot, Blaizot, Calzetta, Canet, Canet, Carrington, Chou, Cornwall, D. Mesterházy, Delamotte, Duben, Frisch, Fukushima, Gasenzer, Gasenzer, Gezzi, Gies, J. Berges, Jakobs, Jeon, Jeon, Kehrein, Keldysh, Kloss, Kofman, Kopietz, Landsman, Martin, Mesterhazy, Micha, Morris, Nazarenko, Nowak, Nowak, Pawlowski, Polonyi, Prokopec, Rosten, Salmhofer, Scheppach, Schmidt, Schmitteckert, Schoeller, Schwinger, Wetterich, Zakharov   +63 more
core   +4 more sources