Found 1170 results, showing the newest relevant preprints. Sort by relevancy only.Update me on new preprints

Hadamard renormalization for a charged scalar field

These results will have applications in the computation of renormalized expectation values for a charged quantum scalar field on a charged black hole space-time, and hence in addressing issues such as the quantum stability of the inner horizon. Expand abstract.
6 days ago
10/10 relevant
arXiv

Running Vacuum from Dynamical Spacetime Cosmology

The Running Vacuum Model (RVM) has been a candidate to solve the tension between the Hubble constant from the early and the late universe data fit. Expand abstract.
6 days ago
4/10 relevant
arXiv

Resonant frequencies of a massless scalar field in the canonical acoustic black hole

In this letter we consider the exact solution of the Klein-Gordon equation describing a massless scalar field in the spacetime of a four dimensional canonical acoustic black hole, which is given in terms of the general Heun function, to discuss the interesting phenomena related to the resonant frequencies. Expand abstract.
7 days ago
10/10 relevant
arXiv

Strong cosmic censorship in de Sitter space: As strong as ever

We have performed the full non-linear evolution of the massless charged scalar field minimally coupled to the Einstein-Maxwell system in de Sitter space, and found that the non-linear effect can restore the strong cosmic censorship, making it as strong as ever. Expand abstract.
11 days ago
4/10 relevant
arXiv

Deformed general relativity

I firstly find the minimally-deformed model for a scalar-tensor theory, thereby establishing a classical reference point, and investigate the cosmological effects of a non-minimal coupled scalar field. Expand abstract.
11 days ago
4/10 relevant
arXiv

Quantum aspects of Yukawa model with scalar and axial scalar fields in curved spacetime

We study the Yukawa model with one scalar and one axial scalar fields, coupled to $N$ copies of Dirac fermions, in curved spacetime background. Expand abstract.
11 days ago
10/10 relevant
arXiv

Quasinormal modes of magnetized black hole

We investigate charged, massive scalar field around static, spherically symmetric black hole immersed into an external asymptotically uniform magnetic field $B$. Expand abstract.
12 days ago
8/10 relevant
arXiv

Locally contorted space-time invokes inflation, dark energy, and a non-singular Big Bang

The cosmological impact of the Covariant Canonical Gauge Theory of Gravity is investigated. Expand abstract.
12 days ago
4/10 relevant
arXiv

Adiabatic regularization and Green's function of massless scalar field in general RW spacetimes

We study adiabatic regularization of a coupling massless scalar field in general spatially flat Robertson-Walker (RW) spacetimes. Expand abstract.
17 days ago
10/10 relevant
arXiv

A duality of scalar fields: General results

A scalar field has a series of dual fields, forming a duality family. Expand abstract.
19 days ago
9/10 relevant
arXiv