Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Fabio Scardigli"'
Publikováno v:
Physics Letters B, Vol 838, Iss , Pp 137722- (2023)
The notions of minimum geometrical length and minimum length scale are discussed with reference to correlation functions obtained from in-in and in-out amplitudes in quantum field theory. Whereas the in-in propagator for metric perturbations does not
Externí odkaz:
https://doaj.org/article/0e16150fc33741209eb5b0cd21f55e5a
Publikováno v:
Physics Letters B, Vol 824, Iss , Pp 136818- (2022)
The non–zero value of Planck constant h underlies the emergence of several inequalities that must be satisfied in the quantum realm, the most prominent one being Heisenberg Uncertainty Principle. Among these inequalities, Bekenstein bound provides
Externí odkaz:
https://doaj.org/article/c758530de6764e24bdb38e01c415ac42
Autor:
Fabio Scardigli
Publikováno v:
Universe, Vol 8, Iss 12, p 645 (2022)
A universal upper limit on the entropy contained in a localized quantum system of a given size and total energy is expressed by the so-called Bekenstein bound. In a previous paper [Buoninfante, L. et al. 2022], on the basis of general thermodynamic a
Externí odkaz:
https://doaj.org/article/f74b8cee56b3482b8e1d91ab478f8934
Autor:
Roberto Casadio, Fabio Scardigli
Publikováno v:
Physics Letters B, Vol 807, Iss , Pp 135558- (2020)
The Generalized Uncertainty Principle (GUP) has been directly applied to the motion of (macroscopic) test bodies on a given space-time in order to compute corrections to the classical orbits predicted in Newtonian Mechanics or General Relativity. The
Externí odkaz:
https://doaj.org/article/a7a8b1c0a40a4ae1b45ef25ebdf26095
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 9, Pp 1-8 (2018)
Abstract We consider a generalized uncertainty principle (GUP) corresponding to a deformation of the fundamental commutator obtained by adding a term quadratic in the momentum. From this GUP, we compute corrections to the Unruh effect and related Unr
Externí odkaz:
https://doaj.org/article/d11be8db96c24a49ba0778bc2fa192fd
Publikováno v:
Physics Letters B, Vol 767, Iss C, Pp 242-246 (2017)
We propose a technique to compute the deformation parameter of the generalized uncertainty principle by using the leading quantum corrections to the Newtonian potential. We just assume General Relativity as theory of Gravitation, and the thermal natu
Externí odkaz:
https://doaj.org/article/57f8509089904fa890a69e3ec3a1e603
Autor:
Fabio Scardigli
Publikováno v:
Symmetry, Vol 12, Iss 9, p 1519 (2020)
Mass thresholds, lifetimes, entropy and heat capacity for micro black holes close to their late Schwarzschild phase are computed using two different generalized uncertainty principles, in the framework of models with extra spatial dimensions. Emissio
Externí odkaz:
https://doaj.org/article/c9f159769b044f038555102c2cd7a3cf
Autor:
Gaetano Lambiase, Fabio Scardigli
Publikováno v:
Physical Review
We present a procedure to link the deformation parameter $\beta$ of the generalized uncertainty principle (GUP) to the two free parameters $\om$ and $\gamma$ of the running Newtonian coupling constant of the Asymptotic Safe gravity (ASG) program. To
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05e0923b2dd82b30e6e32661802a1799
http://arxiv.org/abs/2204.07416
http://arxiv.org/abs/2204.07416
Autor:
Fabio Scardigli, Gaetano Lambiase
Scale dependence of fundamental physical parameters is a generic feature of ordinary quantum field theory. When applied to gravity, this idea produces effective actions generically containing a running Newtonian coupling constant, from which new (sph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4a4b27ecd10133af0fc1a53f33f65f2