Results 121 to 130 of about 326,761 (366)
Gradient flows for $\beta$ functions via multi-scale renormalization group equations
, 2018 Renormalization schemes and cutoff schemes allow for the introduction of various distinct renormalization scales for distinct couplings. We consider the coupled renormalization group flow of several marginal couplings which depend on just as many ...
Ellwanger, Ulrich
core +1 more source
Minimally doubled fermions at one loop [PDF]
, 2009 Minimally doubled fermions have been proposed as a cost-effective realization of chiral symmetry at non-zero lattice spacing. Using lattice perturbation theory at one loop, we study their renormalization properties.
Capitani, Stefano +2 more
core +3 more sources
Advanced Optical Materials, EarlyView.Mechanisms by which excitons and charge carriers can funnel and recombine in 2D multi‐layered MAPbBr3 Ruddlesden‐Popper perovskite nanosheets are missing. This femtosecond transient absorption spectroscopy study creates a comprehensive understanding of how directed transport, exciton‐exciton annihilation, and Auger recombination occur in colloidal ...
André Niebur +4 more
wiley +1 more source
Oxygen Defect Formation Thermodynamics of CaMnO3: A Closer Look
physica status solidi (b), Volume 260, Issue 1, January 2023., 2023 The aim of this work is to find an optimal theoretical approach to compute the defect formation thermochemistry of CaMnO3. The hybrid functional PW1PW combined with CRYSTAL/PBE thermodynamic corrections is able to compute the defect formation enthalpy of CaMnO3 with an absolute deviation of −10.8 kJ mol−1 and can be recommended for use in computing ...
Benjamin Grimm, Thomas Bredow
wiley +1 more source
Non-perturbative renormalization of QCD [PDF]
, 1997 In these lectures, we discuss different types of renormalization problems in QCD and their non-perturbative solution in the framework of the lattice formulation. In particular the recursive finite size methods to compute the scale-dependence of renormalized quantities is explained.
arxiv +1 more source
Perturbative renormalization of quasi-parton distribution functions [PDF]
, 2017 In this paper we present results for the renormalization of gauge invariant nonlocal fermion operators which contain a Wilson line, to one-loop level in lattice perturbation theory.
M. Constantinou, H. Panagopoulos
semanticscholar +1 more source
Novel demonstration of the renormalization group invariance of the fixed-order predictions using the principle of maximum conformality and the C -scheme coupling [PDF]
Physical Review D, 2018 As a basic requirement of the renormalization group invariance, any physical observable must be independent of the choice of both the renormalization scheme and the initial renormalization scale.
Xing-Gang Wu +3 more
semanticscholar +1 more source
Self-Consistency Requirements of the Renormalization Group for Setting the Renormalization Scale
, 2012 In conventional treatments, predictions from fixed-order perturbative QCD calculations cannot be fixed with certainty due to ambiguities in the choice of the renormalization scale as well as the renormalization scheme.
A. L. Kataev +10 more
core +2 more sources
Advanced Optical Materials, EarlyView.Ultrafast transient absorption spectroscopy reveals that α‐In2Se3, a non‐toxic and air‐stable 2D material, demonstrates slow hot carrier (HC) cooling (≈35 ps), comparable to perovskites. This prolonged cooling can enable efficient energy extraction. Comprehensive analysis captures key HC dynamics, such as quasi‐Fermi shifts, many‐body interactions, and
Sung Bok Seo +4 more
wiley +1 more source
Renormalization group evolution of the Standard Model dimension six operators III: gauge coupling dependence and phenomenology [PDF]
Journal of High Energy Physics, 2013 We calculate the gauge terms of the one-loop anomalous dimension matrix for the dimension-six operators of the Standard Model effective field theory (SM EFT). Combining these results with our previous results for the λ and Yukawa coupling terms completes
R. Alonso +3 more
semanticscholar +1 more source