Induced fermionic current by a magnetic tube in the cosmic string spacetime

@article{Sousa2016InducedFC,
  title={Induced fermionic current by a magnetic tube in the cosmic string spacetime},
  author={M. S. Maior de Sousa and R F Ribeiro and Eugenio R. Bezerra de Mello},
  journal={Physical Review D},
  year={2016},
  volume={93},
  pages={043545}
}
In this paper, we consider a charged massive fermionic quantum field in the space-time of an idealized cosmic string, in the presence of a magnetic field confined in a cylindrical tube of finite radius. Three distinct configurations for the magnetic field is taken into account: (i) a cylindrical shell of radius $a$, (ii) a magnetic field proportional to $1/r$ and (iii) a constant magnetic field. In these three cases, the axis of the infinitely long tube of radius $a$ coincides with the cosmic… 

Figures from this paper

Azimuthal fermionic current in the cosmic string spacetime induced by a magnetic tube

In this paper, we analyze the vacuum azimuthal fermionic current induced by a magnetic field confined in a cylindrical tube of finite radius $a$, in the cosmic string spacetime. Three distinct

Induced fermionic vacuum polarization in a de Sitter spacetime with a compactified cosmic string

We study the fermionic condensate (FC) and the vacuum expectation value (VEV) of the energy-momentum tensor for a massive spinor field in the de Sitter (dS) spacetime including an ideal cosmic

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

In this paper, we analyse the bosonic current densities induced by a magnetic flux running along the core of an idealized cosmic string in a high-dimensional AdS spacetime, admitting that an extra

Electromagnetic vacuum fluctuations around a cosmic string in de Sitter spacetime

The electromagnetic field correlators are evaluated around a cosmic string in background of $$(D+1)$$(D+1)-dimensional dS spacetime assuming that the field is prepared in the Bunch–Davies vacuum

Vacuum bosonic currents induced by a compactified cosmic string in dS background

In this paper, we study the vacuum bosonic currents in the geometry of a compactified cosmic string in the background of the de Sitter spacetime. The currents are induced by magnetic fluxes, one

Relativistic Quantum Motion of an Electron in Spinning Cosmic String Spacetime in the Presence of Uniform Magnetic Field and Aharonov-Bohm Potential

In this manuscript, we study the relativistic quantum mechanics of an electron in external fields in the spinning cosmic string spacetime. We obtain the Dirac equation and write the first- and

Finite temperature fermion condensate, charge and current densities in a ($$2+1$$2+1)-dimensional conical space

We evaluate the fermion condensate and the expectation values of the charge and current densities for a massive fermionic field in ($$2+1$$2+1)-dimensional conical spacetime with a magnetic flux

Vacuum polarization of Dirac fermions in the cosmological de Sitter global monopole spacetime

We study the vacuum polarisation effects of the Dirac fermionic field induced by a pointlike global monopole located in the cosmological de Sitter spacetime. First we derive the four orthonormal Dirac

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

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 the radial

Noncommutative Dirac and Klein–Gordon oscillators in the background of cosmic string: Spectrum and dynamics

From a study of an oscillator in a $4D$ NC spacetime, we establish the Hamilton equations of motion. The formers are solved to give the oscillator position and momentum coordinates. These coordinates

References

SHOWING 1-10 OF 17 REFERENCES

Cosmic strings and other topological defects in nonscaling regimes

Cosmic strings are topological defects possibly formed in the early Universe, which may be observable due to their gravitational effects on the cosmic microwave background radiation or gravitational

A Table of Integrals

Basic Forms x n dx = 1 n + 1 x n+1 (1) 1 x dx = ln |x| (2) udv = uv − vdu (3) 1 ax + b dx = 1 a ln |ax + b| (4) Integrals of Rational Functions 1 (x + a) 2 dx = −

Phys

  • Rev. D 36, 3742
  • 1987

Commun

  • Math. Phys. 165, 297 (1994); M.E.X. Guimarães, Class. Quantum Grav. 12, 1705 (1995); B. Linet, Class. Quantum Grav. 13, 97
  • 1996

Phys

  • Rev. D 53, 6829
  • 1996

Phys

  • Rev. D 64, 043004
  • 2001

Saharian, and V.M

  • Bardeghyan, Phys. Rev. D
  • 2010

Classical Quantum Gravity 13

  • L41
  • 1996

Phys

  • Rev. D 31 1323
  • 1985

Phys

  • Rev. Lett. 85, 3761
  • 2000