Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Fichet, Sylvain"'
We study holographic entanglement entropy and revisit thermodynamics and confinement in the dilaton-gravity system. Our analysis focuses on a solvable class of backgrounds that includes AdS and linear dilaton spacetimes as particular cases, with some
Externí odkaz:
http://arxiv.org/abs/2406.02899
We compute the four-photon ($F^4$) operators generated by loops of charged particles of spin $0$, $\frac{1}{2}$, $1$ in the presence of gravity and in any spacetime dimension $d$. To this end, we expand the one-loop effective action via the heat kern
Externí odkaz:
http://arxiv.org/abs/2404.07254
Autor:
Barbosa, Sergio, Fichet, Sylvain
Light particles quadratically coupled to nucleons induce macroscopic forces in matter. While a quantum effect always exists, an additional force occurs in the presence of a finite density of the light particles. We compute and classify such backgroun
Externí odkaz:
http://arxiv.org/abs/2403.13894
Autor:
Brax, Philippe, Fichet, Sylvain
Publikováno v:
Physics 2024, 6(2), 544-567
We investigate the quantum forces occurring between the defects and/or boundaries of a conformal field theory (CFT). We propose to model imperfect defects and boundaries as localized relevant double-trace operators that deform the CFT. Our focus is o
Externí odkaz:
http://arxiv.org/abs/2312.02281
Publikováno v:
J. High Energ. Phys. 2024, 77 (2024)
We study a solvable class of five-dimensional dilaton gravity models that continuously interpolate between anti-de Sitter (AdS$_5$), linear dilaton (LD$_5$) and positively curved spacetimes as a function of a continuous parameter $\nu$. The dilaton v
Externí odkaz:
http://arxiv.org/abs/2311.14233
Publikováno v:
Phys. Rev. D 109, 106011 (2024)
The linear dilaton background is the keystone of a string-derived holographic correspondence beyond AdS$_{d+1}$/CFT$_d$. This motivates an exploration of the $(d+1)$-dimensional linear dilaton spacetime (LD$_{d+1}$) and its holographic properties fro
Externí odkaz:
http://arxiv.org/abs/2309.02489
Publikováno v:
J. High Energ. Phys. 2024, 330 (2024)
We examine the Abelian Higgs model in (d+1)-dimensional anti-de Sitter space with an ultraviolet brane. The gauge symmetry is broken by a bulk Higgs vacuum expectation value triggered on the brane. We propose two separate Goldstone boson equivalence
Externí odkaz:
http://arxiv.org/abs/2309.00040
Publikováno v:
Phys.Rev.D 107 (2023) 11, 115014
We study the cosmology of a three-brane in a specific five-dimensional scalar-gravity (i.e. soft-wall) background, known as the linear dilaton background. We discover that the Friedmann equation of the brane-world automatically contains a term mimick
Externí odkaz:
http://arxiv.org/abs/2212.13268
We examine effective field theories (EFTs) with a continuum sector in the presence of gravity. We first explain, via arguments based on central charge and species scale, that an EFT with a free continuum cannot consistently couple to standard (i.e. 4
Externí odkaz:
http://arxiv.org/abs/2208.12273
Autor:
Baldenegro, Cristian, Bellora, Andrea, Fichet, Sylvain, von Gersdorff, Gero, Pitt, Michael, Royon, Christophe
We study the LHC sensitivity to new broad neutral resonances produced in two-photon fusion and decaying to a top quark pair, $\gamma\gamma \to t\bar{t}$. This is probed in central exclusive $t\bar{t}$ production in proton-proton collisions, $pp \to p
Externí odkaz:
http://arxiv.org/abs/2205.01173