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EMU I-REP

Browsing PHY – Journal Articles: Publisher & Author Versions (Post-Print Author Versions) – Physics by Title

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  • Note on ‘‘Large family of colliding waves in the Einstein–Maxwell theory’’ 
    Halilsoy, Mustafa (Journal of Mathematical Physics, American Isntitute of Physics (AIP), 1993)
    As a supplementary to the general class of solutions published in this journal [J. Math. Phys. 31, 2694 (1990)] we remark that for a specific choice of our seed function we obtain an interesting solution which reduces ...
  • On a Class Transcendent Solution in EM Theory 
    Halilsoy, Mustafa (Europhysics Letters EPL, Institute of Physics (IOP) Publishing, 1986)
    The role of the Bavinonic condition in a previously obtained solution of the Ernst equation is clarified.
  • On multiplicative and Volterra minimization methods 
    Özyapıcı, Ali; Rıza, Mustafa; Bilgehan, Bülent; Bashirov, Agamirza (Springer US, 2014)
    Theory and applications of multiplicative and Volterra calculi have been evolving rapidly over the recent years. As numerical minimization methods have a wide range of applications in science and engineering, the idea of ...
  • On Some Properties of the NUT-Curzon Space-Time 
    Halilsoy, Mustafa; Gürtuğ, Özay (Nuovo Cimento B, Springer, 1994)
    We present the NUT generalization of the Curzon metric with its multipole extension. The Schwarzschild quadrupole potential in the prolate spheroidal coordinates turns out to cancel the quadrupole moment of a ...
  • On the Generation of a Class of Einstein-Maxwell Solutions 
    Halilsoy, Mustafa (General Relativity and Gravitation, Springer, 1983)
    We make an alternative approach to Bonnorification by making use of effective Lagrangians for the gravitational fields. Using this technique we obtain a new Einstein-Maxwell solution
  • On the quasi-exact solvability of a singular potential in D-dimensions: Confined and unconfined 
    Mustafa, Omar (Inst Physics Acad Sci Czech Republic, Springer (Online Publishing), 2002)
    The D -dimensional quasi - exact solutions for the singular even - power anharmonic potential V(q)=aq^2+bq^{-4}+cq^{-6} are reported. We show that whilst Dong and Ma's [5] quasi - exact ground - state solution (in D=2) is ...
  • On the ro-vibrational energies for the lithium dimer; maximum-possible rotational levels 
    Mustafa, Omar (IOP Publishing, 2015)
    The Deng-Fan potential is used to discuss the reliability of the improved Greene-Aldrich approximation and the factorization recipe of Badawi et al [17] for the central attractive/ repulsive core J( J + 1)/2 mu r(2). The ...
  • On the spectroscopic structure of two interacting electrons in a quantum dot 
    Mustafa, Omar (INST PHYSICS ACAD SCI CZECH REPUBLIC, Springer (Online Publishing), 2003)
    The shifted 1/N expansion technique used by El-Said [Phys. Rev. B 61 (2000) 13026], to study the relative Hamiltonian of two interacting electrons confined in a quantum dot, is investigated. El-Said's results from shifted ...
  • Ordering Ambiguity Revisited via Position Dependent Mass Pseudo-Momentum Operators 
    Mustafa, Omar; Mazharimousavi, Habib S. (Springer, 2007)
    Ordering ambiguity associated with the von Roos position dependent mass (PDM) Hamiltonian is considered. An affine locally scaled first order differential introduced, in Eq. (9), as a PDM-pseudo-momentum operator. Upon ...
  • Particle Collision near 1+1- Dimensional Horava-Lifshitz Black Hole and Naked Singularity 
    Mustafa, Halilsoy; Ali, Övgün (Hindawi, 2017-01-16)
    The unbounded center-of-mass (CM) energy of oppositely moving colliding particles near horizon emerges also in 1+1 -dimensional Horava-Lifshitz gravity. This theory has imprints of renormalizable quantum gravity characteristics ...
  • Particle Motion in BS Space-Time 
    Halil, Mustafa (Halilsoy, Mustafa) (International Journal of Theoretical Physics, Springer, 1981)
    We solve the geodesics equation for a charged particle in Bell-Szekeres spacetime. In the same geometry we give the test particle solution of Dirac's equation.
  • A particular thin-shell wormhole 
    Sakallı, İzzet; Övgün, Ali (Springer, 2017-02-09)
    Using a black hole with scalar hair, we construct a scalar thin-shell wormhole (TSW) in 2+1 dimensions by applying the Visser cut and paste technique. The surface stress, which is concentrated at the wormhole throat, is ...
  • Perturbed coulombic potentials in dirac and Klein-Gordon equations 
    Mustafa, Omar (INST PHYSICS ACAD SCI CZECH REPUBLIC , Springer(Online publishing), 2004)
    A relativistic extension of our pseudo-perturbative shifted l-expansion technique is presented to solve for the eigenvalues of Dirac and Klein-Gordon equations. Once more we show the numerical usefulness of its results via ...
  • Perturbed Coulomb potentials in the Klein-Gordon equation via the shifted- l expansion technique 
    Barakat, Thabit; Maen, Odeh; Mustafa, Omar (IOP PUBLISHING LTD, 1998)
    A shifted-l expansion technique is introduced to calculate the energy eigenvalues for the Klein-Gordon (KG) equation with Lorentz vector and/or Lorentz scalar potentials. Although it applies to any spherically symmetric ...
  • The Physical Interpretation of a Painleve‟s Transcendent Space-Time 
    Mustafa, Halilsoy; M., El-Said (General Relativity and Gravitation, Springer, 1993)
    We construct a nondiagonalizable solution of the stationary axially symmetric vacuum Einstein equations involving Painleve transcendents III(V). From the asymptotic behaviour of this solution we identify the corresponding ...
  • Position-dependent-mass: Cylindrical coordinates, separability, exact solvability and PT-symmetry 
    Mustafa, Omar (IOP Publishing, 2010)
    The kinetic energy operator with position-dependent-mass in cylindrical coordinates is obtained. The separability of the corresponding Schrodinger equation is discussed within radial cylindrical mass settings. Azimuthal ...
  • Position-dependent mass Lagrangians: nonlocal transformations, Euler-Lagrange invariance and exact solvability 
    Mustafa, Omar (IOP Publishing, 2015)
    A general nonlocal point transformation for position-dependent mass (PDM) Lagrangians and their mapping into a 'constant unit-mass' Lagrangians in the generalized coordinates is introduced. The conditions on the invariance ...
  • PP-Waves in the Generalized Einstein Theories 
    Metin, Gürses; Halil, Mustafa (Halilsoy, Mustafa) (Physics Letters, Elsevier, 1978)
    We present pp-wave solutions to the generalized Einstein—Maxwell field theory introduced by Horndeski and to Mansouri- Chang theory of gravitation.
  • Propagator theory of scanning tunneling microscopy 
    Bracher, Christian; Rıza, Mustafa; Kleber, Markus (American Physical Soc, 1997)
    We develop a quantum mechanical scattering theory for electrons which tunnel out of (or into) the tip of a scanning tunneling microscope. The method is based on propagators (or Green functions) for quasistationary scattering ...
  • Quantization of Higher Dimensional Linear Dilaton Black Hole Area/Entropy From Quasinormal Modes 
    Sakallı, İzzet (International Journal of Modern Physics A, World Scientific Publishing, 2013)
    The quantum spectra of area and entropy of higher dimensional linear dilaton black holes in various theories via the quasinormal modes method are studied. It is shown that quasinormal modes of these black holes can reveal ...