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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 an arbitrary number of toroidally compactified spatial…

高能物理 - 理论 · 物理学 2014-04-23 S. Bellucci , E. R. Bezerra de Mello , A. A. Saharian

We investigate the edge effects on the finite temperature fermionic condensate (FC) for a massive fermionic field in a (2+1)-dimensional conical spacetime with a magnetic flux located at the cone apex. The field obeys the bag boundary…

高能物理 - 理论 · 物理学 2019-11-27 Aram A. Saharian , Eugênio R. Bezerra de Mello , Astghik A. Saharyan

We study the finite temperature and edge induced effects on the charge and current densities for a massive spinor field localized on a 2D conical space threaded by a magnetic flux. The field operator is constrained on a circular boundary,…

高能物理 - 理论 · 物理学 2025-04-22 A. A. Saharian , V. F. Manukyan , T. A. Petrosyan

We investigate the finite temperature expectation values of the charge and current densities for a massive fermionic field with nonzero chemical potential, $\mu$, in the geometry of a straight cosmic string with a magnetic flux running…

高能物理 - 理论 · 物理学 2015-06-12 A. Mohammadi , E. R. Bezerra de Mello , A. A. Saharian

We investigate the vacuum expectation value of the fermionic current induced by a magnetic flux in a (2+1)-dimensional conical spacetime in the presence of a circular boundary. On the boundary the fermionic field obeys MIT bag boundary…

高能物理 - 理论 · 物理学 2010-11-12 E. R. Bezerra de Mello , V. B. Bezerra , A. A. Saharian , V. M. Bardeghyan

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 on a conical ring threaded by a magnetic flux. Different…

高能物理 - 理论 · 物理学 2020-04-01 S. Bellucci , I. Brevik , A. A. Saharian , H. G. Sargsyan

Here we analyze the finite temperature expectation values of the charge and current densities for a massive fermionic quantum field with nonzero chemical potential, $\mu$, induced by a magnetic flux running along the axis of an idealized…

高能物理 - 理论 · 物理学 2015-09-30 Eugênio R. Bezerra de Mello , Aram A. Saharian , Azadeh Mohammadi

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-dimensional circular ring. Both the irreducible representations of…

高能物理 - 理论 · 物理学 2016-11-15 S. Bellucci , A. A. Saharian , A. Kh. Grigoryan

The fermion condensate (FC) is investigated for a (2+1)-dimensional massive fermionic field confined on a truncated cone with an arbitrary planar angle deficit and threaded by a magnetic flux. Different combinations of the boundary…

高能物理 - 理论 · 物理学 2021-03-24 A. A. Saharian , T. A. Petrosyan , A. A. Hovhannisyan

The fermionic condensate is investigated in a (2+1)-dimensional conical spacetime in the presence of a circular boundary and a magnetic flux. It is assumed that on the boundary the fermionic field obeys the MIT bag boundary condition. For…

高能物理 - 理论 · 物理学 2011-04-22 S. Bellucci , E. R. Bezerra de Mello , A. A. Saharian

We derive a closed expression for the vacuum expectation value (VEV) of the fermionic current density in a (D+1)-dimensional locally AdS spacetime with an arbitrary number of toroidally compactified Poincare spatial dimensions and in the…

高能物理 - 理论 · 物理学 2017-10-04 S. Bellucci , A. A. Saharian , V. Vardanyan

Here we analyze the expectation value of the fermionic condensate and the energy-momentum tensor associated with a massive charged fermionic quantum field with a nonzero chemical potential propagating in a magnetic-flux-carrying cosmic…

高能物理 - 理论 · 物理学 2024-10-07 W. Oliveira dos Santos , E. R. Bezerra de Mello

In this paper, we investigate the fermionic current densities induced by a magnetic flux running along the idealized cosmic string in a four-dimensional spacetime, admitting that the coordinate along the string's axis is compactified. In…

高能物理 - 理论 · 物理学 2013-08-29 E. R. Bezerra de Mello , A. A. Saharian

We investigate the properties of the fermionic Fulling-Rindler vacuum for a massive Dirac field in a general number of spatial dimensions. As important local characteristics, the fermionic condensate and the expectation value of the…

高能物理 - 理论 · 物理学 2023-11-17 S. Bellucci , V. Kh. Kotanjyan , A. A. Saharian

In this paper we study the expectation values of the induced charge and current densities for a massive bosonic field with nonzero chemical potential in the geometry of a higher dimensional compactified cosmic string with magnetic fluxes,…

高能物理 - 理论 · 物理学 2016-06-29 Azadeh Mohammadi , Eugênio Ramos Bezerra de Mello

Fermionic condensate and the vacuum expectation values of the energy-momentum tensor are investigated for twisted and untwisted massive spinor fields in higher-dimensional de Sitter spacetime with toroidally compactified spatial dimensions.…

高能物理 - 理论 · 物理学 2008-12-25 E. R. Bezerra de Mello , A. A. Saharian

The vacuum expectation value (VEV) of the energy-momentum tensor for a massive fermionic field is investigated in a (2+1)-dimensional conical spacetime in the presence of a circular boundary and an infinitely thin magnetic flux located at…

高能物理 - 理论 · 物理学 2012-02-14 E. R. Bezerra de Mello , F. Moraes , A. A. Saharian

We investigate the fermionic condensate and the vacuum expectation value of the energy-momentum tensor for a massive fermionic field in the geometry of two parallel plate on the background of Minkowski spacetime with an arbitrary number of…

高能物理 - 理论 · 物理学 2011-06-07 E. Elizalde , S. D. Odintsov , A. A. Saharian

We calculate the condensate and the vacuum current density induced by external static magnetic fields in (2+1)-dimensions. At the perturbative level, we consider an exponentially decaying magnetic field along one cartesian coordinate.…

高能物理 - 唯象学 · 物理学 2014-11-21 Alfredo Raya , Edward Reyes

We investigate the finite temperature expectation values of the charge and current densities for a complex scalar field with nonzero chemical potential in background of a flat spacetime with spatial topology $R^{p}\times (S^{1})^{q}$. Along…

高能物理 - 理论 · 物理学 2013-03-26 E. R. Bezerra de Mello , A. A. Saharian
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