Results 101 to 110 of about 162,505 (294)
Renormalization group in super-renormalizable quantum gravity
European Physical Journal C: Particles and Fields, 2018 One of the main advantages of super-renormalizable higher derivative quantum gravity models is the possibility to derive exact beta functions, by making perturbative one-loop calculations.
Leonardo Modesto +2 more
doaj +1 more source
Functional renormalization group flow of massive gravity
European Physical Journal C: Particles and Fields, 2020 We apply the functional renormalization group equation to a massive Fierz–Pauli action in curved space and find that, even though a massive term is a modification in the infrared sector, the mass term modifies the value of the non-gaussian fixed point in
Maximiliano Binder, Iván Schmidt
doaj +1 more source
Numerical Renormalization Group at Criticality
, 1996 We apply a recently developed numerical renormalization group, the corner-transfer-matrix renormalization group (CTMRG), to 2D classical lattice models at their critical temperatures.
Barber +21 more
core +1 more source
Equivariant toric geometry and Euler–Maclaurin formulae
Communications on Pure and Applied Mathematics, EarlyView.Abstract We first investigate torus‐equivariant motivic characteristic classes of toric varieties, and then apply them via the equivariant Riemann–Roch formalism to prove very general Euler–Maclaurin‐type formulae for full‐dimensional simple lattice polytopes.
Sylvain E. Cappell +3 more
wiley +1 more source
Density Matrix Renormalization Group Lagrangians [PDF]
, 2008 We introduce a Lagrangian formulation of the Density Matrix Renormalization Group (DMRG). We present Lagrangians which when minimised yield the optimal DMRG wavefunction in a variational sense, both within the general matrix product ansatz, as well as ...
Chan, Garnet Kin-Lic
core +1 more source
Properties of Renormalization Group Transformations
, 1997 We describe some properties of Renormalization Group transformations. Especially we show why some of the RG transformations have redundant eigenoperators with eigenvalues that cannot be determined by simple dimensional analysis and give the corresponding
Bell +16 more
core +1 more source
Ghost effect from Boltzmann theory
Communications on Pure and Applied Mathematics, EarlyView.Abstract Taking place naturally in a gas subject to a given wall temperature distribution, the “ghost effect” exhibits a rare kinetic effect beyond the prediction of classical fluid theory and Fourier law in such a classical problem in physics. As the Knudsen number ε$\varepsilon$ goes to zero, the finite variation of temperature in the bulk is ...
Raffaele Esposito +3 more
wiley +1 more source
Renormalization group procedure for potential −g/r2
Physics Letters B, 2018 Schrödinger equation with potential −g/r2 exhibits a limit cycle, described in the literature in a broad range of contexts using various regularizations of the singularity at r=0. Instead, we use the renormalization group transformation based on Gaussian
S.M. Dawid +5 more
doaj +1 more source
Light‐Induced On‐Surface Reactions: Bridging Photochemistry and Surface Science
ChemPlusChem, EarlyView.This minireview examines molecular on‐surface photochemistry as an emerging strategy for synthesizing carbon‐based nanomaterials on substrates. A special emphasis is placed on bridging traditional photochemistry principles with surface science concepts.
Federico Frezza +3 more
wiley +1 more source
Time-Dependent Real-Space Renormalization Group Method [PDF]
Journal of Sciences, Islamic Republic of Iran, 2005 In this paper, using the tight-binding model, we extend the real-space renormalization group method to time-dependent Hamiltonians. We drive the time-dependent recursion relations for the renormalized tight-binding Hamiltonian by decimating selective ...
doaj