Found 1527 results, showing the newest relevant preprints. Sort by relevancy only.Update me on new preprints

Dynamically Generated Inflationary Lambda-CDM

The non-Riemannian volume-element in the initial Einstein-Hilbert action upon passage to the physical Einstein-frame creates dynamically a second scalar field with a non-trivial inflationary potential and with an additional interaction with the dynamically generated dark matter. Expand abstract.
6 days ago
7/10 relevant
Preprints.org

Distinguishing Brans-Dicke-Kerr type naked singularities and black holes with their thin disk electromagnetic radiation properties

The possible existence of naked singularities, hypothetical astrophysical objects, characterized by a gravitational singularity without an event horizon is still an open problem in present day astrophysics. Expand abstract.
13 days ago
4/10 relevant
arXiv

A Neutron Star with a Strange Quark Star-like Mass-Radius Relation

We study the structure of spherically symmetric and static objects in the presence of a nonminimally coupled scalar field having a potential of the form $V(\phi)=-\mu^2\phi^2/2+\lambda\phi^4/4$. Expand abstract.
14 days ago
5/10 relevant
arXiv

Second moment fuzzy-field-theory-like matrix models

We solve a multitrace matrix model approximating the real quartic scalar field theory on the fuzzy sphere and obtain its phase diagram. Expand abstract.
15 days ago
4/10 relevant
arXiv

Conformal structure of FLRW Cosmology: Spinorial representation and the so(3,2) algebra of observables

It was recently shown that the homogeneous and isotropic cosmology of a massless scalar field coupled to general relativity exhibits a new hidden conformal invariance under Mobius transformation of the proper time, additionally to the invariance under time-reparamterization. Expand abstract.
21 days ago
7/10 relevant
arXiv

Mass inflation and the $C^2$-inextendibility of spherically symmetric charged scalar field dynamical black holes

It has long been suggested that the Cauchy horizon of dynamical black holes is subject to a weak null singularity, under the mass inflation scenario. Expand abstract.
23 days ago
10/10 relevant
arXiv

Test the Weak Cosmic Censorship Conjecture in Torus-Like Black Hole under Charged Scalar Field

For the specific black hole under scalar field scattering we consider, in the extend phase space, the first law of thermodynamics and the weak cosmic censorship conjecture are valid. Expand abstract.
33 days ago
10/10 relevant
arXiv

Harrison-Zel'dovich scale invariance and the exponential decrease of the "cosmological constant" in the super-early Universe

A generalized cosmological constant depending from the Dirac scalar field is introduced. Expand abstract.
36 days ago
4/10 relevant
arXiv

Real-time Dynamics of Plasma Balls

Prompt scalar field collapse then produces an excited black hole at the bottom of the geometry together with gravitational and scalar radiation. Expand abstract.
37 days ago
4/10 relevant
arXiv

Quantum simulation of Unruh-DeWitt detectors with nonlinear optics

We propose a method for simulating an Unruh-DeWitt detector, coupled to a 1+1-dimensional massless scalar field, with a suitably-engineered $\chi^{(2)}$ nonlinear interaction. Expand abstract.
38 days ago
4/10 relevant
arXiv