Výsledky vyhledávání - "expansion: derivative"

Anomalies from an effective field theory perspective

Autor: Baptiste Filoche, Rémy Larue, Jérémie Quevillon, Pham Ngoc Hoa Vuong

Publikováno v: Physical Review D
Physical Review D, 2023, 107 (2), pp.025017. ⟨10.1103/PhysRevD.107.025017⟩
Physical Review

The path-integral measure of a gauge-invariant fermion theory is transformed under the chiral transformation and leads to an elegant derivation of the anomalous chiral Ward-Takahashi identities, as we know from the seminal work of Fujikawa. We presen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46a788757a92715d53d5a396f8d0f94b
https://hal.science/hal-03672771

Zobrazit plný text záznamu

Essential renormalisation group

Autor: Baldazzi, Alessio, Zinati, Riccardo Ben Alì, Falls, Kevin

We propose a novel scheme for the exact renormalisation group motivated by the desire of reducing the complexity of practical computations. The key idea is to specify renormalisation conditions for all inessential couplings, leaving us with the task

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3696d97fecbb46e036c41b5cbd4f1ecf

Zobrazit plný text záznamu

The fermionic universal one-loop effective action

Autor: Tevong You, Pham Ngoc Hoa Vuong, Jérémie Quevillon, Zhengkang Zhang, Sebastian A. R. Ellis

Publikováno v: JHEP
JHEP, 2020, 11, pp.078. ⟨10.1007/JHEP11(2020)078⟩
Journal of High Energy Physics, Vol 2020, Iss 11, Pp 1-29 (2020)
Journal of High Energy Physics

Recent development of path integral matching techniques based on the covariant derivative expansion has made manifest a universal structure of one-loop effective Lagrangians. The universal terms can be computed once and for all to serve as a referenc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d861565d7db326ae2aabbce823854267
https://doi.org/10.1007/jhep11(2020)078

Zobrazit plný text záznamu

Fefferman--Graham and Bondi Gauges in the Fluid/Gravity Correspondence

Autor: P. Marios Petropoulos, Romain Ruzziconi, Charles Marteau, Luca Ciambelli

Publikováno v: Proceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2019)
"""Proceedings of Corfu Summer Institute 2019 """"School and Workshops on Elementary Particle Physics and Gravity"""" — PoS(CORFU2019)"""
PoS
19th Hellenic School and Workshops on Elementary Particle Physics and Gravity
19th Hellenic School and Workshops on Elementary Particle Physics and Gravity, Aug 2019, Corfu, Greece. pp.154, ⟨10.22323/1.376.0154⟩

In three-dimensional gravity, we discuss the relation between the Fefferman--Graham gauge, the Bondi gauge and the Eddington--Finkelstein type of gauge, often referred to as the derivative expansion, involved in the fluid/gravity correspondence. Star

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c246a83da485ccf614b377d16cd867f
https://doi.org/10.22323/1.376.0154

Zobrazit plný text záznamu

Reliability of the local truncations for the random tensor models renormalization group flow

Autor: Vincent Lahoche, Dine Ousmane Samary

Publikováno v: Physical Review D
Physical Review D, American Physical Society, 2020, 102 (5), pp.056002. ⟨10.1103/PhysRevD.102.056002⟩
Physical Review
Phys.Rev.D
Phys.Rev.D, 2020, 102 (5), pp.056002. ⟨10.1103/PhysRevD.102.056002⟩

The standard nonperturbative approaches of renormalization group for tensor models are generally focused on a purely local potential approximation (i.e. involving only generalized traces and product of them) and are showed to strongly violate the mod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac25353c279b79c3fd1897f1fa9d7c02

Zobrazit plný text záznamu

Conformal invariance in the nonperturbative renormalization group: a rationale for choosing the regulator

Autor: Nicolás Wschebor, Matthieu Tissier, Ivan Balog, Gonzalo De Polsi

Publikováno v: Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2020, 101 (6), pp.062146. ⟨10.1103/PhysRevE.101.062146⟩

Field-theoretical calculations performed in an approximation scheme often present a spurious dependence of physical quantities on some unphysical parameters associated with the details of the calculation setup (such as, the renormalization scheme or,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09ff3924244b701afef0d9a358c88d2a

Zobrazit plný text záznamu

Precision calculation of critical exponents in the $O(N)$ universality classes with the nonperturbative renormalization group

Autor: Gonzalo De Polsi, Matthieu Tissier, Nicolás Wschebor, Ivan Balog

We compute the critical exponents $\nu$, $\eta$ and $\omega$ of $O(N)$ models for various values of $N$ by implementing the derivative expansion of the nonperturbative renormalization group up to next-to-next-to-leading order [usually denoted $\mathc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68e5ed9be1dd40f73eefc1834c4e30ad
https://hal.archives-ouvertes.fr/hal-02475288

Zobrazit plný text záznamu

Non-vanishing zero-temperature normal density in holographic superfluids

Autor: Eric Mefford, Blaise Goutéraux

Publikováno v: Journal of High Energy Physics
Journal of High Energy Physics, Springer, 2020, 11, pp.091. ⟨10.1007/JHEP11(2020)091⟩
Journal of High Energy Physics, Vol 2020, Iss 11, Pp 1-51 (2020)

The low energy and finite temperature excitations of a d + 1-dimensional system exhibiting superfluidity are well described by a hydrodynamic model with two fluid flows: a normal flow and a superfluid flow. In the vicinity of a quantum critical point

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba8fad7532cfb5573151336bb8c649e5
https://hal.archives-ouvertes.fr/hal-02933957

Zobrazit plný text záznamu

Convergence of Nonperturbative Approximations to the Renormalization Group

Autor: Hugues Chaté, Bertrand Delamotte, Maroje Marohnić, Ivan Balog, Nicolás Wschebor

Publikováno v: Phys.Rev.Lett.
Phys.Rev.Lett., 2019, 123 (24), pp.240604. ⟨10.1103/PhysRevLett.123.240604⟩

We provide analytical arguments showing that the non-perturbative approximation scheme to Wilson's renormalisation group known as the derivative expansion has a finite radius of convergence. We also provide guidelines for choosing the regulator funct

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8555ca9fea81bf74c0c52b35259714db
https://hal.archives-ouvertes.fr/hal-02188862

Zobrazit plný text záznamu

Conformal invariance and vector operators in the $O(N)$ model

Autor: Nicolás Wschebor, Gonzalo De Polsi, Matthieu Tissier

Publikováno v: J.Statist.Phys.
J.Statist.Phys., 2019, 177, pp.1089. ⟨10.1007/s10955-019-02411-3⟩

It is widely expected that, for a large class of models, scale invariance implies conformal invariance. A sufficient condition for this to happen is that there exists no integrated vector operator, invariant under all internal symmetries of the model

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5601766ac47957fb386b6f6e5793118
https://hal.archives-ouvertes.fr/hal-02283513

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání