Browsing Department of Physics by Title

EMU I-REP

Browsing Department of Physics by Title

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  • Quantum probes of timelike naked singularities in the weak field regime of f(R) global monopole spacetime 
    Gürtuğ, Özay; Halilsoy, Mustafa; Mazharimousavi, S. Habib (Journal of High Energy Physics, Springer, 2014)
    The formation of a naked singularity in f(R) global monopole spacetime is considered in view of quantum mechanics. Quantum test fields obeying the Klein−Gordon, Dirac and Maxwell equations are used to probe the classical ...
  • Quantum singularities in (2+1) dimensional matter coupled black hole spacetimes 
    Ünver, Özlem; Gürtuğ, Özay (Physical Review D, American Physical Society (APS), 2010)
    Quantum singularities considered in the 3D BTZ spacetime by Pitelli and Letelier (Phys. Rev. D77: 124030, 2008) is extended to charged BTZ and 3D Einstein-Maxwell-dilaton gravity spacetimes. The occurence of naked singularities ...
  • Quantum Singularities in (2+1) Dimensional Matter Coupled Black Hole Spacetimes 
    Ünver, Özlem (Eastern Mediterranean University (EMU), 2012)
    ABSTRACT: Quantum singularities are considered in matter coupled 2+1 dimensional spacetimes in Einstein’s theory. The occurrence of naked singularities in the spacetimes both in linear and non-linear electrodynamics in ...
  • Quantum singularities in a model of f(R) Gravity 
    Tahamtan, Tayabeh; Gürtuğ, Özay (European Physical Journal C: Particles and Fields, Springer, 2012)
    The formation of a naked singularity in a model of f(R) gravity having as source a linear electromagnetic field is considered in view of quantum mechanics. Quantum test fields obeying the Klein-Gordon, Dirac and Maxwell ...
  • Quantum Tunneling and Hartman Effect 
    Övgün, Ali (Izmir Institute of Technology - İzmir Yüksek Teknoloji Enstitüsü, 2010)
    Thıs is my undergraduate thesis. So far I have worked on tunneling and its classi-cal, semi-classical and quantum description, then I looked some unsolved problems . Ihave learned about Hartman e ect , ...
  • Quantum tunneling of massive spin-1 particles from non-stationary metrics 
    Sakallı, İzzet; Övgün, Ali (General Relativity and Gravitation, Springer, 2015-11-15)
    We focus on the HR of massive vector (spin-1) particles tunneling from Schwarzschild BH expressed in the Kruskal–Szekeres and dynamic Lemaitre coordinates. Using the Proca equation together with the Hamilton–Jacobi and ...
  • A quasi-free position-dependent mass jump and self-scattering correspondence 
    Mustafa, Omar; Mazharimousavi, Habib S. (IOP Publishing, 2010-11)
    A quasi-free quantum particle endowed with a Heaviside position-dependent mass jump is observed to experience scattering effects manifested by its by-product introduction of the derivative of the Dirac delta point dipole ...
  • Quasinormal modes of charged dilaton black holes and their entropy spectra 
    Sakallı, İzzet (Modern Physics Letters A, World Scientific Publishing, 2013)
    In this study, we employ the scalar perturbations of the charged dilaton black hole (CDBH) found by Chan, Horne and Mann (CHM), and described with an action which emerges in the low-energy limit of the string theory. A ...
  • Radial power-law position-dependent mass: Cylindrical coordinates, separability and spectral signatures 
    Mustafa, Omar (IOP Publishing, 2011)
    We discuss the separability of the position-dependent-mass (PDM) Hamiltonian in cylindrical coordinates in the framework of a radial power-law PDM. We consider two particular radial mass settings: a harmonic oscillator ...
  • Radial Power-Law Position-dependent Mass, Cylindrical Coordinates, Spectral Signatures 
    Saty, Majeed J. Saleem (Eastern Mediterranean University (EMU) - Doğu Akdeniz Üniversitesi (DAÜ), 2015-01)
    ABSTRACT: By exploring the Position-dependent mass Von Roos Hamiltonian under cylindrical coordinates settings, we discuss the separation of variables of Schrödinger equation. Two radial masses of a coulomb-type and a ...
  • A Realizable Quantum Three-Pass Protocol Authentication Based on Hill-Cipher Algorithm 
    Abdullah, Alharith A.; Khalaf, Rifaat; Rıza, Mustafa (Hindawi Publishing Corporation, 2015)
    A realizable quantum three-pass protocol authentication based on Hill-cipher algorithm is presented by encoded and decoded plaintext using classical Hill-cipher algorithm. It is shown that the encoded message transferred ...
  • Real spectra for non-Hermitian Dirac equation in 1+1 dimensions with a most general coupling 
    Mustafa, Omar (Elsevier, 2009)
    The most general combination of couplings of fermions with external potentials in 1+1 dimensions, must include vector, scalar and pseudoscalar potentials. We consider such a mixing of potentials in a PT-symmetric ...
  • Reflection of electromagnetic waves from mixtures of plane gravitational and scalar waves 
    Gürtuğ, Özay; Halilsoy, Mustafa; Ünver, Özlem (Physical Review D,, 2006)
    We consider colliding wave packets consisting of hybrid mixtures of electromagnetic, gravitational and scalar waves. Irrespective of the scalar field, the electromagnetic wave still reflects from the gravitational wave. ...
  • Regular charged black hole construction in 2+1 -dimensions 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa; Tahamtan, Tayebeh (Physics Letters A, Elsevier, 2012)
    It is well-known that unlike its chargeless version the charged Banados-Teitelboim-Zanelli (BTZ) black hole solution in 2+1- dimensional spacetime is singular. We construct a charged, regular extension of the BTZ black ...
  • Resonance Spectra of Caged Stringy Black Hole and Its Spectroscopy 
    Sakallı, İzzet; Tokgöz, Gülnihal (Hindawi Publishing Corporation, 2015)
    Maggiore’s method (MM), which evaluates the transition frequency that appears in the adiabatic invariant from the highly damped quasinormal mode (QNM) frequencies, is used to investigate the entropy/area spectra of the ...
  • Restricted Class of Colliding Einstein-Yang-Mills Plane Waves 
    Gürtuğ, Özay; Halilsoy, Mustafa (International Journal of Modern Physics A, World Scientific Publishing, 2009)
    By gauging an Abelian electromagnetic (em) solution through a non-Abelian transformation and in accordance with a theorem proved long time ago, we construct a simple class of colliding Einstein-Yang-Mills (EYM) plane waves. ...
  • Rindler modified Schwarzschild geodesics 
    Halilsoy, Mustafa; Gürtuğ, Özay; Mazharimousavi, S. Habib (General Relativity and Gravitation, Springer, 2013)
    The mysterious attractive constant radial force acted in the past on Pioneer spacecrafts - the so-called Pioneer anomaly - is considered within the context of Rindler acceleration. As an idea this is tempting since it is ...
  • Rindler Type Acceleration in f(R) Gravity 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa (Modern Physics Letters A, World Scientific Publishing, 2013)
    By choosing a fluid source in f(R) gravity, defined by f(R) = R-12aξ ln|R|, where a (Rindler acceleration) and ξ are both constants, the field equations correctly yield the Rindler acceleration term in the metric. We ...
  • Rotating Thin-Shell Wormhole 
    Övgün, Ali (SpringerLink, 2016-11-08)
    We construct a rotating thin-shell wormhole using a Myers-Perry black hole in five dimensions, using the Darmois-Israel junction conditions. The stability of the wormhole is analyzed under perturbations. We find that exotic ...
  • The Runge-Kutta method in geometric multiplicative calculus 
    Rıza, Mustafa; Aktöre, Hatice (Cambridge Univ Press, 2015)
    This paper illuminates the derivation, applicability, and efficiency of the multiplicative Runge Kutta method, derived in the framework of geometric multiplicative calculus. The removal of the restrictions of geometric ...