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Violation of the Nernst heat theorem in the theory of the thermal Casimir force between Drude metals

- V. Bezerra, G. L. Klimchitskaya, V. Mostepanenko, C. Romero
- Physics
- 22 January 2004

We give a rigorous analytical derivation of low-temperature behavior of the Casimir entropy in the framework of the Lifshitz formula combined with the Drude dielectric function. An earlier result… Expand

91 2- PDF

Analytical approximations to the l-wave solutions of the Schrödinger equation with the Eckart potential

- S. Dong, W. Qiang, G. Sun, V. Bezerra
- Mathematics
- 24 August 2007

The bound-state solutions of the Schrodinger equation with the Eckart potential with the centrifugal term are obtained approximately. It is shown that the solutions can be expressed in terms of the… Expand

106 1

THE RELATIVISTIC BOUND AND SCATTERING STATES OF THE ECKART POTENTIAL WITH A PROPER NEW APPROXIMATE SCHEME FOR THE CENTRIFUGAL TERM

- G. Wei, S. Dong, V. Bezerra
- Physics
- 10 January 2009

The approximately analytical bound and scattering state solutions of the arbitrary l wave Klein–Gordon equation for mixed Eckart potentials are obtained through a proper new approximation to the… Expand

33 1

Non-relativistic quantum systems on topological defects spacetimes

- Geusa de A. Marques, V. Bezerra
- Physics
- 7 November 2001

We study the behaviour of non-relativistic quantum particles interacting with different potentials in the spacetimes generated by a cosmic string and a global monopole. We find the energy spectra in… Expand

58 1- PDF

Global effects due to a chiral cone

- V. Bezerra
- Physics
- 1 May 1997

Scalar and spinor quantum particles are considered in the background space–time generated by a chiral cosmic string. It is shown that in this chiral conical space–time, the wave functions, the energy… Expand

60 1

Global effects due to cosmic defects in Kaluza-Klein theory

- C. Furtado, F. Moraes, V. Bezerra
- Physics
- 22 April 1999

48 1

The vacuum expectation value of the spinor massive field in the cosmic string spacetime

- V. Bezerra, N. Khusnutdinov
- Physics
- 5 February 2006

We find the contribution to the vacuum expectation value of the energy–momentum tensor of a massive Dirac field due to the conical geometry of the cosmic string spacetime. The heat kernel and heat… Expand

37 1- PDF

ALGEBRAIC APPROACH TO THE KLEIN–GORDON EQUATION WITH HYPERBOLIC SCARF POTENTIAL

- S. Dong, S. Dong, H. Bahlouli, V. Bezerra
- Physics
- 2011

Using the shape invariance approach we obtain exact solutions of one-dimensional Klein–Gordon equation with equal types of scalar and vector hyperbolic Scarf potentials. This is considered in the… Expand

14 1

AdS and stabilized extra dimensions in multi-dimensional gravitational models with nonlinear scalar curvature terms R -1 and R 4

- U. Günther, A. Zhuk, V. Bezerra, C. Romero
- Physics
- 10 September 2004

We study multi-dimensional gravitational models with scalar curvature nonlinearities of types R−1 and R4. It is assumed that the corresponding higher dimensional spacetime manifolds undergo a… Expand

34 1- PDF

Spacetime geometry fluctuations and geodesic deviation

- H. S. Vieira, L. Ford, V. Bezerra
- Physics
- 14 May 2018

The quantum fluctuations of the geodesic deviation equation in a flat background spacetime are discussed. We calculate the resulting mean squared fluctuations in the relative velocity and separation… Expand

5 1- PDF

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