Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Antonio Gallerati"'
Autor:
Antonio Gallerati
Publikováno v:
Particles, Vol 6, Iss 3, Pp 762-770 (2023)
We review some recent soliton solutions in a class of four-dimensional supergravity theories. The latter can be obtained from black hole solutions by means of a double Wick rotation. For special values of the parameters, the new configurations can be
Externí odkaz:
https://doaj.org/article/aae6e7729a484f4495c5ef98b6224412
Publikováno v:
Physics Letters B, Vol 846, Iss , Pp 138226- (2023)
The uncharged AdS4 soliton has been recently shown to be continuously connected to a magnetic, supersymmetric AdS4 soliton within N=8 gauged supergravity. By constructing the asymptotic superalgebra, we establish a positive energy theorem for the mag
Externí odkaz:
https://doaj.org/article/59e12bcae07d4b51948345f4d80135cd
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-35 (2023)
Abstract We consider soliton solutions in AdS4 with a flat slicing and Wilson loops around one cycle. We study the phase structure and find the ground state and identify supersymmetric solutions as a function of the Wilson loops. We work in the conte
Externí odkaz:
https://doaj.org/article/029005ce54d9415a956279907b5e95ea
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-14 (2021)
Abstract In this paper we prove that the four-dimensional hyperbolic supersymmetric black holes can be unstable in the canonical ensemble. To this end, we work with an infinite class of N $$ \mathcal{N} $$ = 2 supergravity theories interpolating betw
Externí odkaz:
https://doaj.org/article/33e543651d504aa2b7f7a3c07d306681
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-37 (2021)
Abstract In this article we study a family of four-dimensional, N $$ \mathcal{N} $$ = 2 supergravity theories that interpolates between all the single dilaton truncations of the SO(8) gauged N $$ \mathcal{N} $$ = 8 supergravity. In this infinitely ma
Externí odkaz:
https://doaj.org/article/afc0121b530c4c7db7f9993464e49fb7
Publikováno v:
Results in Physics, Vol 30, Iss , Pp 104838- (2021)
We estimate the conjectured interaction between the Earth’s gravitational field and a superconductor immersed in external, static electric and magnetic field. The latter is close to the sample upper critical field and generates the presence of a vo
Externí odkaz:
https://doaj.org/article/b24b8b7940a04431a62e4e6ca27b5c2a
Publikováno v:
Universe, Vol 8, Iss 11, p 608 (2022)
Many exoplanets have been detected by the radial velocity method, according to which the motion of a binary system around its center of mass can produce a periodical variation of the Doppler effect of the light emitted by the host star. These variati
Externí odkaz:
https://doaj.org/article/fb47088bef0045848d8a37525911a2e9
Publikováno v:
Symmetry, Vol 14, Iss 3, p 554 (2022)
We review and discuss some recent developments on the unconventional interaction between superconducting systems and the local gravitational field. While it is known that gravitational perturbations (such as gravitational waves) can affect superconde
Externí odkaz:
https://doaj.org/article/9c1cb76e651f472589102555d13eb7d4
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 4, Pp 1-32 (2018)
Abstract We consider a D = 4, N=2 $$ \mathcal{N}=2 $$ gauged supergravity with an electromagnetic Fayet-Iliopoulos term. We restrict to the uncharged, single dilaton consistent truncation and point out that the bulk Lagrangian is self-dual under elec
Externí odkaz:
https://doaj.org/article/f0ff4aca8d6d421e955af3ba245f75eb
Autor:
Antonio Gallerati
Publikováno v:
Universe, Vol 7, Iss 6, p 187 (2021)
We review a special class of N=2 supergravity model that interpolates all the single-dilaton truncations of the maximal SO(8) gauged supergravity. We also provide explicit non-extremal, charged black hole solutions and their supersymmetric limits, as
Externí odkaz:
https://doaj.org/article/17ce0d5642a24c358c7554a097952e02