65 citations · 338 across the 17 of their papers we have counts for
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Entanglement Entropy of Massive Scalar Fields: Mass Suppression, Violation of Universal mR Scaling, and Implications for Black Hole Thermodynamics
S. Bellucci, M. Shatnev, L. Zazunov
We investigate the entanglement entropy of a massive scalar field using the spherical shell lattice model introduced by Das and Shankaranarayanan. A systematic numerical analysis i…
Vacuum fermionic currents in braneworld models on AdS bulk with a cosmic string
S. Bellucci, W. Oliveira dos Santos, E. R. Bezerra de Mello +1
We investigate the effects of a brane and magnetic-flux-carrying cosmic string on the vacuum expectation value (VEV) of the current density for a charged fermionic field in the bac…
Induced fermionic current in AdS spacetime in the presence of a cosmic string and a compactified dimension
S. Bellucci, W. Oliveira dos Santos, E. R. Bezerra de Mello
In this paper, we consider a massive charged fermionic quantum field and investigate the current densities induced by a magnetic flux running along the core of an idealized cosmic…
The Casimir effect for fermionic currents in conical rings with applications to graphene ribbons
S. Bellucci, I. Brevik, A. A. Saharian +1
We investigate the combined effects of boundaries and topology on the vacuum expectation values (VEVs) of the charge and current densities for a massive 2D fermionic field confined…
Induced fermionic charge and current densities in two-dimensional rings
S. Bellucci, A. A. Saharian, A. Kh. Grigoryan
For a massive quantum fermionic field, we investigate the vacuum expectation values (VEVs) of the charge and current densities induced by an external magnetic flux in a two-dimensi…
Finite temperature fermion condensate, charge and current densities in a (2+1)-dimensional conical space
S. Bellucci, E. R. Bezerra de Mello, E. Bragança +1
We evaluate the fermion condensate and the expectation values of the charge and current densities for a massive fermionic field in (2+1)-dimensional conical spacetime with a magnet…
Hadamard function and the vacuum currents in braneworlds with compact dimensions: Two-branes geometry
S. Bellucci, A. A. Saharian, V. Vardanyan
We evaluate the Hadamard function and the vacuum expectation value (VEV) of the current density for a charged scalar field in the region between two co-dimension one branes on the…
Vacuum currents in braneworlds on AdS bulk with compact dimensions
S. Bellucci, A. A. Saharian, V. Vardanyan
The two-point function and VEV of the current density are investigated for a massive charged scalar field with arbitrary curvature coupling in the geometry of a brane on background…
Casimir effect for scalar current densities in topologically nontrivial spaces
S. Bellucci, A. A. Saharian, N. A. Saharyan
We evaluate the Hadamard function and the vacuum expectation value (VEV) of the current density for a charged scalar field, induced by flat boundaries in spacetimes with an arbitra…
Wightman function and the Casimir effect for a Robin sphere in a constant curvature space
S. Bellucci, A. A. Saharian, N. A. Saharyan
We evaluate the Wightman function, the mean field squared and the vacuum expectation value (VEV) of the energy-momentum tensor for a scalar field with Robin boundary condition on a…
Casimir densities from coexisting vacua
S. Bellucci, A. A. Saharian, A. H. Yeranyan
Wightman function, the vacuum expectation values (VEVs) of the field squared and the energy-momentum tensor are investigated for a massive scalar field with general curvature coupl…
Finite temperature fermionic condensate and currents in topologically nontrivial spaces
S. Bellucci, E. R. Bezerra de Mello, A. A. Saharian
We investigate the finite temperature fermionic condensate and the expectation values of the charge and current densities for a massive fermion field in a spacetime background with…
Fermionic vacuum polarization in compactified cosmic string spacetime
S. Bellucci, E. R. Bezerra de Mello, A. de Padua +1
We investigate the fermionic condensate (FC) and the vacuum expectation value (VEV) of the energy-momentum tensor for a charged massive fermionic field in the geometry of a cosmic…
Electromagnetic two-point functions and the Casimir effect in Friedmann-Robertson-Walker cosmologies
S. Bellucci, A. A. Saharian
We evaluate the two-point functions of the electromagnetic field in (D+1) -dimensional spatially flat Friedmann-Robertson-Walker universes with a power-law scale factor, assuming t…
Scalar and fermionic vacuum currents in de Sitter spacetime with compact dimensions
S. Bellucci, A. A. Saharian, H. A. Nersisyan
Vacuum expectation values (VEVs) of the current densities for charged scalar and Dirac spinor fields are investigated in (D+1)-dimensional de Sitter (dS) spacetime with toroidally…
Induced fermionic current in toroidally compactified spacetimes with applications to cylindrical and toroidal nanotubes
S. Bellucci, A. A. Saharian, V. M. Bardeghyan
The vacuum expectation value of the fermionic current is evaluated for a massive spinor field in spacetimes with an arbitrary number of toroidally compactified spatial dimensions i…
Wightman function and vacuum densities in de Sitter spacetime with toroidally compactified dimensions
S. Bellucci, A. A. Saharian
We investigate the Wightman function, the vacuum expectation values of the field square and the energy-momentum tensor for a scalar field with general curvature coupling parameter…