Results 61 to 70 of about 789,910 (273)
Physical properties of the massive Schwinger model from the nonperturbative functional renormalization group [PDF]
Physical Review D, 2021 We investigate the massive Schwinger model in $d=1+1$ dimensions using bosonization and the nonperturbative functional renormalization group. In agreement with previous studies we find that the phase transition, driven by a change of the ratio $m/e ...
Patrick Jentsch +3 more
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WAVE FUNCTIONALS, HAMILTONIANS AND THE RENORMALIZATION GROUP [PDF]
International Journal of Modern Physics A, 1996 We analyze the renormalization of wave functionals and energy eigenvalues in field theory. A general discussion of the canonical structure of the renormalization group equation is also given.
Minic, D., Nair, V. P.
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Operator product expansion coefficients from the nonperturbative functional renormalization group [PDF]
Physical Review D, 2021 Using the nonperturbative functional renormalization group (FRG) within the Blaizot-M\'endez-Galain-Wschebor approximation, we compute the operator product expansion (OPE) coefficient $c_{112}$ associated with the operators $\mathcal{O}_1\sim\varphi$ and
F. Rose, C. Pagani, N. Dupuis
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Renormalization group functional equations
Physical Review D, 2011 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. With minimal assumptions, the methods produce continuous flows from step-scaling functions, and lead to exact functional relations for the local flow
Curtright, Thomas L., Zachos, Cosmas K.
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Product Wave Function Renormalization Group [PDF]
Journal of the Physical Society of Japan, 1995 We propose a fast numerical renormalization group method-the product wave function renormalization group (PWFRG) method-for 1D quantum lattice models and 2D classical ones. A variational wave function, which is expressed as a matrix product, is improved through a self-consistent calculation. The new method has the same fixed point as the density matrix
Tomotoshi Nishino, Kouichi Okunishi
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Exact flow equation for the divergence functional
Physics Letters B, 2023 An exact functional renormalization group flow equation is derived for the divergence functional which is a generalization of the Kullback-Leibler divergence to quantum field theories in the Euclidean domain.
Stefan Floerchinger
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Spatio-temporal correlation functions in scalar turbulence from functional renormalization group [PDF]
The Physics of Fluids, 2021 We provide the leading behavior at large wavenumbers of the two-point correlation function of a scalar field passively advected by a turbulent flow. We first consider the Kraichnan model, in which the turbulent carrier flow is modeled by a stochastic ...
C. Pagani, L. Canet
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Functional renormalization group approach to neutron matter
Physics Letters B, 2014 The chiral nucleon-meson model, previously applied to systems with equal number of neutrons and protons, is extended to asymmetric nuclear matter. Fluctuations are included in the framework of the functional renormalization group.
Matthias Drews, Wolfram Weise
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Anti-Newtonian Expansions and the Functional Renormalization Group
Universe, 2019 Anti-Newtonian expansions are introduced for scalar quantum field theories and classical gravity. They expand around a limiting theory that evolves only in time while the spatial points are dynamically decoupled.
Max Niedermaier
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Efimov Physics from the Functional Renormalization Group [PDF]
Few-Body Systems, 2011 28 pages, 13 figures, invited contribution to a special issue of "Few-Body Systems" devoted to Efimov physics, published ...
Floerchinger, Stefan +2 more
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