Potentials and point symmetries of Klein–Gordon equations in space-time homogenous Gödel-type metrics

2017 ◽  
Vol 14 (05) ◽  
pp. 1750070 ◽  
Author(s):  
Sameerah Jamal
Keyword(s):  
Gordon Equation ◽  
Analytic Solutions ◽  
Space Time ◽  
Primary Sources ◽  
Linear Combinations ◽  
Invariant Functions ◽  
Group Invariant ◽  
Klein Gordon ◽  
Klein Gordon Equation

In this paper, we study the geometric properties of generators for the Klein–Gordon equation on classes of space-time homogeneous Gödel-type metrics. Our analysis complements the study involving the “Symmetries of geodesic motion in Gödel-type spacetimes” by U. Camci (J. Cosmol. Astropart. Phys., doi: 10.1088/1475-7516/2014/07/002 ). These symmetries or Killing vectors (KVs) are used to construct potential functions admitted by the Klein–Gordon equation. The criteria for the potential function originates from three primary sources, viz. through generators that are identically the Killing algebra, or with the KV fields that are recast into linear combinations and third, real subalgebras within the Killing algebra. This leads to a classification of the [Formula: see text] Klein–Gordon equation according to the catalogue of infinitesimal Lie and Noether point symmetries admitted. A comprehensive list of group invariant functions is provided and their application to analytic solutions is discussed.

scholarly journals Relativistic scalar particle subject to a confining potential and Lorentz symmetry breaking effects in the cosmic string space–time

2016 ◽  
Vol 31 (07) ◽  
pp. 1650026 ◽  
Author(s):  
H. Belich ◽  
K. Bakke
Keyword(s):  
Symmetry Breaking ◽  
Cosmic String ◽  
Gordon Equation ◽  
Scalar Potential ◽  
Scalar Particle ◽  
Lorentz Symmetry ◽  
Space Time ◽  
Klein Gordon ◽  
Lorentz Symmetry Breaking ◽  
Klein Gordon Equation

The behavior of a relativistic scalar particle subject to a scalar potential under the effects of the violation of the Lorentz symmetry in the cosmic string space–time is discussed. It is considered two possible scenarios of the Lorentz symmetry breaking in the CPT-even gauge sector of the Standard Model Extension defined by a tensor [Formula: see text]. Then, by introducing a scalar potential as a modification of the mass term of the Klein–Gordon equation, it is shown that the Klein–Gordon equation in the cosmic string space–time is modified by the effects of the Lorentz symmetry violation backgrounds and bound state solution to the Klein–Gordon equation can be obtained.

scholarly journals Stability study of a model for the Klein–Gordon equation in Kerr space-time

2012 ◽  
Vol 45 (1) ◽  
pp. 203-227 ◽  
Author(s):  
Horst Reinhard Beyer ◽  
Miguel Alcubierre ◽  
Miguel Megevand ◽  
Juan Carlos Degollado
Keyword(s):  
Gordon Equation ◽  
Space Time ◽  
Stability Study ◽  
Klein Gordon ◽  
Kerr Space ◽  
Klein Gordon Equation

Analytical approach for space–time fractional Klein–Gordon equation

Optik ◽  
2017 ◽  
Vol 135 ◽  
pp. 337-345 ◽  
Author(s):  
Omer Unsal ◽  
Ozkan Guner ◽  
Ahmet Bekir
Keyword(s):  
Analytical Approach ◽  
Gordon Equation ◽  
Space Time ◽  
Klein Gordon ◽  
Klein Gordon Equation

Classification of F algebras and noncommutative integration of the Klein-Gordon equation in Riemannian spaces

1993 ◽  
Vol 36 (1) ◽  
pp. 36-40
Author(s):  
O. L. Varaksin ◽  
V. V. Firstov ◽  
A. V. Shapovalov ◽  
I. V. Shirokov
Keyword(s):  
Gordon Equation ◽  
Noncommutative Integration ◽  
Klein Gordon ◽  
Klein Gordon Equation ◽  
Riemannian Spaces

The study of a spinless relativistic particle in the spinning cosmic string space–time

2017 ◽  
Vol 95 (4) ◽  
pp. 331-335 ◽  
Author(s):  
Zhi Wang ◽  
Zheng-wen Long ◽  
Chao-yun Long ◽  
Bing-qian Wang
Keyword(s):  
Cosmic String ◽  
Gordon Equation ◽  
Relativistic Particle ◽  
Energy Levels ◽  
Space Time ◽  
Rotational Parameter ◽  
Cylindrically Symmetric ◽  
Background Space ◽  
Klein Gordon ◽  
Klein Gordon Equation

In this paper we analyze a spinless relativistic particle depicted by the Klein–Gordon equation in the spinning cosmic string space–time. The solutions of the Klein–Gordon equation in the presence of a uniform magnetic field and the Klein–Gordon equation with two common cylindrically symmetric scalar potentials under the background space–time are presented; the energy spectrum and the corresponding wave functions of these systems are obtained by using the functional analysis method. It is shown that the energy levels of the considered physical systems depend explicitly on the angular deficit α and the rotational parameter a, which characterize the global structure of the metric in the space–time of the spinning cosmic string.

scholarly journals Symmetry analysis of the Klein–Gordon equation in Bianchi I spacetimes

2015 ◽  
Vol 12 (03) ◽  
pp. 1550033 ◽  
Author(s):  
A. Paliathanasis ◽  
M. Tsamparlis ◽  
M. T. Mustafa
Keyword(s):  
Wave Equation ◽  
Gordon Equation ◽  
Invariant Solution ◽  
Lie Symmetries ◽  
Conformal Algebra ◽  
Noether Symmetries ◽  
Bianchi I ◽  
Klein Gordon ◽  
Klein Gordon Equation

In this work we perform the symmetry classification of the Klein–Gordon equation in Bianchi I spacetime. We apply a geometric method which relates the Lie symmetries of the Klein–Gordon equation with the conformal algebra of the underlying geometry. Furthermore, we prove that the Lie symmetries which follow from the conformal algebra are also Noether symmetries for the Klein–Gordon equation. We use these results in order to determine all the potentials in which the Klein–Gordon admits Lie and Noether symmetries. Due to the large number of cases and for easy reference the results are presented in the form of tables. For some of the potentials we use the Lie admitted symmetries to determine the corresponding invariant solution of the Klein–Gordon equation. Finally, we show that the results also solve the problem of classification of Lie/Noether point symmetries of the wave equation in Bianchi I spacetime and can be used for the determination of invariant solutions of the wave equation.

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