Zobrazeno 1 - 10
of 17 085
pro vyhledávání: '"A. Proca"'
Autor:
Nambo, Emmanuel Chávez, Diez-Tejedor, Alberto, Preciado-Govea, Edgar, Roque, Armando A., Sarbach, Olivier
In this paper we follow an effective theory approach to study the nonrelativistic limit of a selfgravitating and selfinteracting massive vector field. Our effective theory is characterized by three parameters: the field's mass $m_0$ and the selfinter
Externí odkaz:
http://arxiv.org/abs/2412.06901
It is notoriously difficult to construct a stable non-singular bouncing cosmology that avoids all possible instabilities throughout the entire evolution of the universe. In this work, we explore whether a non-singular bounce driven by a specific clas
Externí odkaz:
http://arxiv.org/abs/2412.03977
Autor:
Joaquin, Carlos, Alcubierre, Miguel
In this paper we consider families of solutions for excited states of Proca stars in spherical symmetry. We focus on the first two excited configurations and perform a series of fully non-linear dynamical simulations in order to study their propertie
Externí odkaz:
http://arxiv.org/abs/2411.09032
Autor:
Petersen, Damian A., Weigel, Herbert
We study an extended Proca model with one scalar field and one massive vector field in one space and one time dimensions. We construct the soliton solution and subsequently compute the vacuum polarization energy (VPE) which is the leading quantum cor
Externí odkaz:
http://arxiv.org/abs/2411.18373
Publikováno v:
Monthly Notices of the Royal Astronomical Society 535 (2), 1998-2008, 2024
We study Coupling Extended Proca-Nuevo gravity, a non-linear theory extending from dRGT massive gravity with a spin-1 field. This theory is shown to yield reliable, ghost-free cosmological solutions, modeling both the Universe's thermal history and l
Externí odkaz:
http://arxiv.org/abs/2412.02707
Autor:
Luo, Shu
In this study, we investigate the quasinormal modes, pseudospectrum and time evolution of a massive vector field around a quantum corrected black hole in de-Sitter spacetime. We start by parameterization and using orthonormal tetrads to get the effec
Externí odkaz:
http://arxiv.org/abs/2408.08139
Publikováno v:
Phys. Rev. D 110, 104070 (2024)
The generalized SU(2) Proca theory is a vector-tensor modified gravity theory characterized by an action that remains invariant under both diffeomorphisms and global internal transformations of the SU(2) group. This study aims to further explore the
Externí odkaz:
http://arxiv.org/abs/2408.07674
Recently, spherical and static flat space solitons (balls) and self-gravitating, everywhere regular, asymptotically flat solitons (stars) were constructed in an Einstein-Proca-Higgs model [1], where a complex vector field gains mass by coupling to a
Externí odkaz:
http://arxiv.org/abs/2406.03552
While numerical simulations offer unparalleled precision and robustness in studying complex physical systems, their execution is often hindered by complexity, costliness, and time consumption due to the intricate equations involved. This challenge is
Externí odkaz:
http://arxiv.org/abs/2405.01348
Flux tube solutions within non-Abelian SU(3) Proca theory with external sources are obtained. It is shown that such tubes have a longitudinal chromoelectric field possessing two components (nonlinear and gradient), as well as a transverse chromomagne
Externí odkaz:
http://arxiv.org/abs/2404.07747