[HTML][HTML] Scattering and bound states for the Hulthén potential in a cosmic string background

M Hosseinpour, FM Andrade, EO Silva… - The European Physical …, 2017 - Springer
In this work we study the Dirac equation with vector and scalar potentials in the spacetime
generated by a cosmic string. Using an approximation for the centrifugal term, a solution for …

Vacuum currents in curved tubes

AA Saharian - Physical Review D, 2024 - APS
We investigate the combined effects of spatial curvature and topology on the properties of
the vacuum state for a charged scalar field localized on rotationally symmetric 2D curved …

Casimir interaction of finite-width strings

YV Grats, P Spirin - Physical Review D, 2023 - APS
Within the trace-logarithm formalism for the effective action we investigate the vacuum
interaction of cosmic strings and the influence of string's width on this effect. For the …

Induced current by a cosmic string and a brane in high-dimensional AdS spacetime

WO Santos, ERB de Mello - The European Physical Journal C, 2024 - Springer
In this paper we investigate the bosonic current induced by a brane and a magnetic flux
running along the idealized cosmic string in a (D+ 1)-dimensional anti-de Sitter (AdS) …

[HTML][HTML] Vacuum effects induced by a plate in de Sitter spacetime in the presence of a cosmic string

WO dos Santos, ER Bezerra de Mello - Universe, 2023 - mdpi.com
In this paper, we investigate the vacuum expectation values of the field squared and the
energy–momentum tensor associated to a charged massive scalar quantum field in a (1+ D) …

Vacuum polarization in high-dimensional AdS space-time in the presence of a cosmic string and a compactified extra dimension

WO Dos Santos, ER Bezerra de Mello… - The European Physical …, 2020 - Springer
In this paper, we analyze the vacuum expectation values (VEVs) of the field squared and the
energy–momentum tensor associated with a charged and massive scalar quantum field in a …

[HTML][HTML] Vacuum interaction of topological strings at short distances

YV Grats, P Spirin - Physics, 2023 - mdpi.com
The paper provides an extended overview of recent results obtained by the authors in the
process of studying the vacuum interaction of topological cosmic strings at short distances …

[HTML][HTML] Three dimensional magnetic solutions in massive gravity with (non) linear field

SH Hendi, BE Panah, S Panahiyan, M Momennia - Physics Letters B, 2017 - Elsevier
Abstract The Noble Prize in physics 2016 motivates one to study different aspects of
topological properties and topological defects as their related objects. Considering the …

[HTML][HTML] Quantum vacuum fluctuation effects in a quasi-periodically identified conical spacetime

KEL de Farias, HFS Mota - Physics Letters B, 2020 - Elsevier
We consider a quasi-periodically identified conical spacetime, like the one of a cosmic string
or disclination, to investigate nonzero averaged quantum vacuum fluctuations effects on the …

Induced current in high-dimensional AdS spacetime in the presence of a cosmic string and a compactified extra dimension

W Oliveira dos Santos, HF Mota, ER Bezerra de Mello - Physical Review D, 2019 - APS
In this paper, we analyze the bosonic current densities induced by a magnetic flux running
along the core of an idealized cosmic string in a high-dimensional anti-de Sitter spacetime …