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The Electrical Polarization of the Earth in Its Orbital Motion
Issue:
Volume 2, Issue 4, November 2017
Pages:
97-100
Received:
9 August 2017
Accepted:
30 August 2017
Published:
25 September 2017
DOI:
10.11648/j.wjap.20170204.11
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Abstract: In the course of its orbital motion, the Earth continuously crosses the magnetic field lines of the Sun. For this reason, the Earth is constantly exposed to the electromagnetic force, which is directed to the Sun. This force may cause the movement of the earth's positive charges in the direction of the Sun and the movement of the earth's negative charges in the opposite direction. Under the action of this force, the earth's electrical charges can move into space. Also, this power turns the Earth into an electric dipole whose axis is oriented along the line that connects the center of the Earth and the center of the Sun. The electrical polarization of the Earth affects the processes that occur on earth's surface.
Abstract: In the course of its orbital motion, the Earth continuously crosses the magnetic field lines of the Sun. For this reason, the Earth is constantly exposed to the electromagnetic force, which is directed to the Sun. This force may cause the movement of the earth's positive charges in the direction of the Sun and the movement of the earth's negative c...
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Analytic Spin and Pseudospin Solutions to the Dirac Equation for the Manning-Rosen Plus Hellmann Potential and Yukawa-Like Tensor Interaction
Louis Hitler,
Benedict Iserom Ita,
Pigweh Amos Isa,
Innocent Joseph,
Nzeata-Ibe Nelson,
Thomas Odey Magu,
Opara Ivan
Issue:
Volume 2, Issue 4, November 2017
Pages:
101-108
Received:
29 August 2017
Accepted:
14 September 2017
Published:
23 October 2017
DOI:
10.11648/j.wjap.20170204.12
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Abstract: The Dirac equation was solved for the Manning-Rosen plus Hellmann potential including a Yukawa-like tensor potential with arbitrary spin-orbit coupling quantum number κ. In the framework of the spin and pseudospin (pspin) symmetry, the energy eigenvalue equation and the corresponding eigenfunctions were obtained in closed form by using the Nikiforov-Uvarov method. Also Special cases of the potential have been considered and their energy eigen values as well as their corresponding eigen functions were obtained for both relativistic and non-relativistic scope.
Abstract: The Dirac equation was solved for the Manning-Rosen plus Hellmann potential including a Yukawa-like tensor potential with arbitrary spin-orbit coupling quantum number κ. In the framework of the spin and pseudospin (pspin) symmetry, the energy eigenvalue equation and the corresponding eigenfunctions were obtained in closed form by using the Nikiforo...
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Wkb Solutions for Inversely Quadratic Yukawa plus Inversely Quadratic Hellmann Potential
Louis Hitler,
Benedict Iserom Ita,
Pigweh Amos Isa,
Nzeata-Ibe Nelson,
Innocent Joseph,
Opara Ivan,
Thomas Odey Magu
Issue:
Volume 2, Issue 4, November 2017
Pages:
109-112
Received:
29 August 2017
Accepted:
14 September 2017
Published:
23 October 2017
DOI:
10.11648/j.wjap.20170204.13
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Abstract: The exact energy spectrum for inversely quadratic Yukawa plus potential plus inversely quadratic Hellmann potential was obtained, via the WKB approach. Also three special cases of the potential have been considered and their energy eigenvalues obtained.
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Theoretical Studies of Positron Annihilation in Aluminum Bismuth Alloy
Noureddine Amrane,
Maamar Benkraouda
Issue:
Volume 2, Issue 4, November 2017
Pages:
113-118
Received:
30 July 2017
Accepted:
5 September 2017
Published:
11 November 2017
DOI:
10.11648/j.wjap.20170204.14
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Abstract: Electron and positron charge densities are calculated as a function of position in the unit cell for Aluminum Bismuth binary compound. Wave functions are derived from pseudopotential band structure calculations and the independent particle approximation (IPM), respectively, for the electrons and the positrons. It is observed that the positron density is maximum in the open interstices and is excluded not only, from the ion cores but also to a considerable degree from the valence bonds. Electron-positron momentum densities are calculated for (001, 110) planes. The results are used to analyze the positron effects in AlBi.
Abstract: Electron and positron charge densities are calculated as a function of position in the unit cell for Aluminum Bismuth binary compound. Wave functions are derived from pseudopotential band structure calculations and the independent particle approximation (IPM), respectively, for the electrons and the positrons. It is observed that the positron densi...
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The Role of Polarization and Spontaneous Emission in Lasing on the Basis of Maxwell’s Equations
Khalid Mohammed Haroun,
Mubarak Dirar Abd-Alla,
Ibrahim Adam Ibrahim Hammad,
Arafa Ahmed Mohamed,
Abakkar Ali Abdallah,
Somia Eltahir Ali,
Adam Mohamed Adam Bakheet
Issue:
Volume 2, Issue 4, November 2017
Pages:
119-123
Received:
8 October 2017
Accepted:
27 October 2017
Published:
27 November 2017
DOI:
10.11648/j.wjap.20170204.15
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Abstract: This research paper mainly aims to investigate the effect of polarization and susceptibility in amplifying light and producing laser using Maxwell equations, which consist of polarization term, and using quantited density matrix. It was shown that the polarization and the susceptibility both contributors to amplification. Strictly speaking, both stimulated photons and spontaneous photons, which in the direction of the field increase polarization.
Abstract: This research paper mainly aims to investigate the effect of polarization and susceptibility in amplifying light and producing laser using Maxwell equations, which consist of polarization term, and using quantited density matrix. It was shown that the polarization and the susceptibility both contributors to amplification. Strictly speaking, both st...
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