Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Gallerati, A."'
Publikováno v:
Eur. Phys. J. C 84 (2024) 179
We study the local interaction of the gravitational field with a superfluid condensate. To this end, we exploit the Ginzburg-Landau formalism with generalized Maxwell fields. The analysis shows that a slight local alteration of the gravitational fiel
Externí odkaz:
http://arxiv.org/abs/2401.17903
Publikováno v:
JHEP 05 (2024) 077
We show that the singularities of certain distributions of M2-branes can be removed by adding a Wilson loop around a compact direction along the brane. The holographic coordinate naturally ends up before the singularity and the resulting spacetime pr
Externí odkaz:
http://arxiv.org/abs/2402.00880
The uncharged AdS$_4$ soliton has been recently shown to be continuously connected to a magnetic, supersymmetric AdS$_4$ soliton within $\mathcal{N}=8$ gauged supergravity. By constructing the asymptotic superalgebra, we establish a positive energy t
Externí odkaz:
http://arxiv.org/abs/2304.09201
Publikováno v:
Eur. Phys. J. Plus 138 (2023), n. 11, 1037
We study the motion of charge carriers in curved Dirac materials, in the presence of a local Fermi velocity. An explicit parameterization of the latter emerging quantity for a nanoscroll cylindrical geometry is also provided, together with a discussi
Externí odkaz:
http://arxiv.org/abs/2301.12952
Publikováno v:
JHEP 02 (2023) 055
We consider soliton solutions in AdS$_{4}$ 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 context o
Externí odkaz:
http://arxiv.org/abs/2210.06319
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-24 (2024)
Abstract We show that the singularities of certain distributions of M2-branes can be removed by adding a Wilson loop around a compact direction along the brane. The holographic coordinate naturally ends up before the singularity and the resulting spa
Externí odkaz:
https://doaj.org/article/ebaf47b4c81d4a73ac2a468d626fa93e
Publikováno v:
Universe 2022, 8(11), 608
Many exoplanets were detected thanks to 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 varia
Externí odkaz:
http://arxiv.org/abs/2206.14657
Publikováno v:
Frontiers in Physics 10 (2022) 941858
We review experiments and theoretical models about the possible mutual interplay between the gravitational field and materials in the superconducting state or other macroscopic quantum states. More generally, we focus on the possibility for quantum m
Externí odkaz:
http://arxiv.org/abs/2206.07574
Autor:
Gallerati, Antonio
Publikováno v:
Phys. Scr. 97 (2022) 064005
We provide an updated study of some electronic properties of graphene nanoscrolls, exploiting a related curved space Dirac equation for the charge carriers. To this end, we consider an explicit parametrization in cylindrical coordinates, together wit
Externí odkaz:
http://arxiv.org/abs/2205.08843
Autor:
G. A. Ummarino, A. Gallerati
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 2, Pp 1-10 (2024)
Abstract We study the local interaction of the gravitational field with a superfluid condensate. To this end, we exploit the Ginzburg–Landau formalism with generalized Maxwell fields. The analysis shows that a slight local alteration of the gravita
Externí odkaz:
https://doaj.org/article/9fc22a54084643aa83d63cca39001b6e