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相关论文: Finite temperature fermionic condensate in a conic…

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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

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 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 magnetic flux located at the cone apex. The consideration is done…

高能物理 - 理论 · 物理学 2016-07-20 S. Bellucci , E. R. Bezerra de Mello , E. Bragança , A. A. Saharian

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 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 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 consider the finite temperature Casimir effect of a massive fermionic field confined between two parallel plates, with MIT bag boundary conditions on the plates. The background spacetime is $M^{p+1}\times T^q$ which has $q$ dimensions…

高能物理 - 理论 · 物理学 2015-05-28 F. S. Khoo , L. P. Teo

We investigate the fermion condensate (FC) for a massive spinor field on background of the 5-dimensional locally anti-de Sitter (AdS) spacetime with a compact dimension and in the presence of a cosmic string carrying a magnetic flux. The FC…

高能物理 - 理论 · 物理学 2022-04-14 S. Bellucci , W. Oliveira dos Santos , E. R. Bezerra de Mello , A. A. Saharian

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

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

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

We discuss the importance of boundary effects on fermionic matter in a rotating frame. By explicit calculations at zero temperature we show that the scalar condensate of fermion and anti-fermion cannot be modified by the rotation once the…

高能物理 - 唯象学 · 物理学 2016-11-23 Shu Ebihara , Kenji Fukushima , Kazuya Mameda

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

We investigate combined effects of gravitational field and spatial topology on the fermionic condensate (FC) for a massive Dirac field in locally anti-de Sitter (AdS) spacetime with a part of spatial dimensions compactified to a torus. For…

高能物理 - 理论 · 物理学 2025-04-22 T. A. Petrosyan , A. A. Grigoryan , 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

Schl\"omilch's formula is generalized and applied to the thermal Casimir effect of a fermionic field confined a three-dimensional rectangular box. The analytic expressions of the Casimir energy and Casimir force are derived for arbitrary…

量子物理 · 物理学 2018-08-08 Zhongyou Mo , Junji Jia

We investigate the Casimir effect at finite temperature for a charged scalar field in the presence of an external uniform and constant magnetic field, perpendicular to the Casimir plates. We have used a boundary condition characterized by a…

高能物理 - 理论 · 物理学 2007-05-23 M. V. Cougo-Pinto , C. Farina , J. F. M. Mendes , A. Tort

In this paper, we consider a charged massive fermionic quantum field in the idealized cosmic string spacetime and in the presence of a magnetic field confined in a cylindrical tube of finite radius. Three distinct configurations for the…

高能物理 - 理论 · 物理学 2017-02-22 M. S. Maior de Sousa , R. Freire Ribeiro , E. R. Bezerra de Mello

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

We investigate the effects of thermal fluctuations on the spontaneous magnetic condensate in three dimensional QED coupled with P-odd Dirac fermions. Our results show that the phenomenon of the spontaneous generation of the constant…

高能物理 - 理论 · 物理学 2009-10-30 Paolo Cea , Luigi Tedesco
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