Zobrazeno 1 - 10
of 6 694
pro vyhledávání: '"Da Silva, A M"'
This paper delves into the deformation of spinor structures within nontrivial topologies and their physical implications. The deformation is modeled by introducing real functions that modify the standard spinor dynamics, leading to distinct physical
Externí odkaz:
http://arxiv.org/abs/2409.11168
Autor:
Issifu, Adamu, da Silva, Franciele M., Santos, Luis C. N., Menezes, Débora P., Frederico, Tobias
This paper investigates the properties of strongly coupled matter at high densities in a quark star (QS). The QS is built from the density-dependent quark mass model (DDQM), modified to obtain higher maximum gravitational mass ($\rm M_{max}$) of the
Externí odkaz:
http://arxiv.org/abs/2408.15889
Autor:
da Silva, Franciele M., Köpp, Fábio, Alloy, Marcelo D., Santos, Luis C. N., Issifu, Adamu, Mota, Clésio E., Menezes, Débora P.
In this work, we constrain the values of the parameters of the Generalized Tolman-Oppenheimer-Volkoff (GTOV) equation through Bayesian inference. We use the mass and radius data from the Neutron Star Interior Composition Explorer (NICER) for PSR J074
Externí odkaz:
http://arxiv.org/abs/2408.10425
In this work, we investigate some extensions of the Kiselev black hole solutions in the context of $f(\mathbb{T},\CMcal{T})$ gravity. By mapping the components of the Kiselev energy-momentum tensor into the anisotropic energy-momentum tensor and assu
Externí odkaz:
http://arxiv.org/abs/2405.20966
The Lounesto classification is a well-established scheme for categorizing spinors based on their physical content, which are determined by their associated bilinear forms. It consists of six disjoint classes encompassing the known spinors within the
Externí odkaz:
http://arxiv.org/abs/2405.06675
Autor:
Ahluwalia, Dharam Vir, de Gracia, G. B., da Silva, Julio M. Hoff, Lee, Cheng-Yang, Pimentel, B. M.
Publikováno v:
JHEP04(2024)075
Not all complete set of spinors can be used as expansion coefficients of a quantum field. In fact, Steven Weinberg established the uniqueness of Dirac spinors for this purpose provided: (a) one paid due attention to the multiplicative phases for each
Externí odkaz:
http://arxiv.org/abs/2312.17038
Guided by a conservative formulation in investigating the physical content of quantum fields, we explore non-standard Wigner classes of particles that could provide the basis for self-interaction models to dark matter. We critically contrast the anal
Externí odkaz:
http://arxiv.org/abs/2312.07675
In this paper, we investigate the evolution of strange quark stars (SQS) from birth as proto-strange quark stars to maturity as stable SQSs at a zero temperature. We assume that self-bound free quarks form {entirely the compact} star and study its ev
Externí odkaz:
http://arxiv.org/abs/2311.12511
Autor:
da Silva, Franciele M., Issifu, Adamu, Lopes, Luiz L., Santos, Luis C. N., Menezes, Débora P.
Publikováno v:
Phys. Rev. D 109, 043054 (2024)
In this work, we perform a comparative analysis between the density-dependent quark model and the vector MIT bag model using Bayesian analysis. We use the equations of state generated by these two models to describe quark stars. We impose four recent
Externí odkaz:
http://arxiv.org/abs/2309.16865
Autor:
da Silva, J. M. Hoff, Rodrigues, J. E.
In this short review, we pay attention to some subtleties in the study of projective representations, contrasting local to global properties and their interplay. The analysis is exposed rigorously, showing and demonstrating the main necessary theorem
Externí odkaz:
http://arxiv.org/abs/2309.07069