Browsing Department of Physics by Title

EMU I-REP

Browsing Department of Physics by Title

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  • Dilatonic interpolation between Reissner-Nordstrom and Bertotti-Robinson spacetimes with physical consequences 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa; Sakallı, İzzet; Gürtuğ, Özay (Classical and Quantum Gravity, Institute of Physics (IOP) Publishing, 2010)
    We give a general class of static, spherically symmetric, non-asymptotically flat and asymptotically non-(anti) de Sitter black hole solutions in Einstein-Maxwell-Dilaton (EMD) theory of gravity in 4-dimensions. In this ...
  • Dirac and Klein–Gordon particles in complex Coulombic fields: a similarity transformation 
    Mustafa, Omar (IOP Publishing, 2003)
    The observation that the existence of the amazing reality and discreteness of the spectrum need not necessarily be attributed to the Hermiticity of the Hamiltonian is re-emphasized in the context of the non-Hermitian Dirac ...
  • Distinct Family of Colliding Waves in General Relativity 
    Halilsoy, Mustafa (Physical Review D, American Physical Society (APS), 1988)
    We present a new family of exact solutions for the Einstein equations that describes colliding gravitational shock waves with cross polarization. In the limit of single polarization it reduces to a family that, up to a ...
  • Domain-Walls in Einstein-Gauss-Bonnet Bulk 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa (Physical Review D, American Physical Society (APS), 2010)
    We investigate the dynamics of a d-dimensional domain wall (DW) in a d+1-dimensional Einstein-Gauss-Bonnet (EGB) bulk. Exact effective potential induced by the Gauss-Bonnet (GB) term on the wall is derived. In the absence ...
  • Double-bounce domain-wall in Einstein-Yang-Mills-Scalar black holes 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa; Tahamtan, Tayabeh (European Physical Journal C, Springer, 2013)
    We find Einstein-Yang-Mills (EYM) black hole solutions endowed with massless scalar hair in the presence of a potential V(ϕ) as function of the scalar field ϕ. Choosing V(ϕ)=constant (or zero) sets the scalar field to ...
  • Effect of Extremely Low Frequency Magnetic Field on the Growth Rate of Bacteria 
    Hassan, Akhink Akram (Eastern Mediterranean University (EMU) - Doğu Akdeniz Üniversitesi (DAÜ), 2015-08)
    Developments in technology has resulted an increase in the use of electrical appliances. Electrical appliances use an alternating current with a frequency of 50 Hz. This alternating current generates an electromagnetic ...
  • Effect of NUT parameter on the analytic extension of the Cauchy horizon that develop in colliding wave spacetimes 
    Gürtuğ, Özay; Halilsoy, Mustafa (International Journal of Modern Physics A, World Scientific Publishing, 2009)
    The Cauchy horizon forming colliding wave solution due to Chandrasekhar and Xanthopoulos (CX) has been generalized by inclusion of the NUT (Newman - Unti - Tamburino) parameter. This is done by transforming the part of the ...
  • The Effect of Probe Pressure on In Vivo Single Fiber Reflectance Spectroscopy 
    Shakibaei, Ali Akbar (Eastern Mediterranean University (EMU) - Doğu Akdeniz Üniversitesi (DAÜ), 2014-01)
    ABSTRACT: Reflectance spectroscopy is a method to noninvasively quantitate the scattering and absorption properties of a turbid medium like tissue. The absorption and scattering properties can be used in diagnosis of ...
  • The Effect of Sources on the Inner Horizon of Black Holes 
    Gürtuğ, Özay; Halilsoy, Mustafa (Physical Review D, American Physical Society (APS), 2001)
    A single pulse of null dust and colliding null dust both transform a regular horizon into a spacelike singularity in the space of colliding waves. The local isometry between such space-times and black holes extrapolates ...
  • Effect of the Born-Infeld Parameter in higher dimensional Hawking radiation 
    Mazharimousavi, S. Habib; Sakallı, İzzet; Halilsoy, Mustafa (Physics Letters B, Elsevier, 2009)
    We show in detail that the Hawking temperature calculated from the surface gravity is in agreement with the result of exact semi-classical radiation spectrum for higher dimensional linear dilaton black holes in various ...
  • Effect of the cosmological constant in the Hawking radiation of 3D charged dilaton black hole 
    Sakallı, İzzet (Astrophysics and Space Science, Springer, 2012)
    This paper deals with the semiclassical radiation spectrum of static and circularly symmetric 3D charged dilaton black holes with cosmological constant {\Lambda} in non-asymptotically flat spacetimes. We first review the ...
  • Effect of the Dilaton Field on the Entropic Force 
    Farahi, Atena (Eastern Mediterranean University (EMU), 2011)
    According to the Eric Verlinde’s arguments on the gravity, we study the entropic force of two spacetimes without and with dilaton field, which are the Schwarzschild black hole and the charged dilaton black hole respectively. ...
  • Effect of the Refractive Index on the Hawking Temperature: An Application of the Hamilton-Jacobi Method 
    Sakallı, İzzet; Mirekhtiary, Seyedeh Fatemeh (Journal of Experimental and Theoretical Physics (JETP), Springer, 2013)
    Hawking radiation of a non-asymptotically flat (NAF) 4-dimensional spherically symmetric and static dilatonic black hole (BH) via the Hamilton-Jacobi (HJ) method has been studied. In addition to the naive coordinates, we ...
  • Effects on Planetary Motion of an External EM Field 
    Mustafa, Halilsoy (General Relativity and Gravitation, Springer, 1993)
    By considering an uncharged mass embedded in an external electromagnetic field we show that the Einstein corrections to the Newtonian results may further be modified
  • Einstein-Born-Infeld black holes with a scalar hair in three-dimensions 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa (Modern Physics Letters A, World Scientific Publishing, 2015)
    We present black hole solutions in 2+1−dimensional Einstein's theory of gravity coupled with Born-Infeld nonlinear electrodynamic and a massless self-interacting scalar field. The model has five free parameters: mass M, ...
  • Einstein-Maxwell gravity coupled to a scalar field in 2+1-dimensions 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa (The European Physical Journal Plus, Springer, 2015)
    We consider Einstein-Maxwell-self-interacting scalar field theory described by a potential V(ϕ) in 2+1−dimensions. The self-interaction potential is chosen to be a highly non-linear double-Liouville type. Exact solutions, ...
  • Einstein-Yang-Mills black hole solution in higher dimensions by the Wu-Yang Ansatz 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa (Physics Letters, Elsevier, 2008)
    By employing the higher dimensional version of the Wu-Yang Ansatz we obtain black hole solutions in the spherically symmetric Einstein-Yang-Mills (EYM) theory. Although these solutions were found recently by other means, ...
  • Emergent cosmological constant from colliding electromagnetic waves 
    Halilsoy, Mustafa; Mazharimousavi, S. Habib; Gürtuğ, Özay (Journal of Cosmology and Astroparticle Physics, Institute of Physics Publishing (IOP), 2014)
    In this study we advocate the view that the cosmological constant is of electromagnetic (em) origin, which can be generated from the collision of em shock waves coupled with gravitational shock waves. The wave profiles ...
  • Energy-Levels Crossing and Radial Dirac Equation: Supersymmetry and Quasi-Parity Spectral Signatures 
    Mustafa, Omar (Springer US, 2008)
    The (3+1)-dimensional Dirac equation with position dependent mass in 4-vector electromagnetic fields is considered. Using two over-simplified examples (the Dirac-Coulomb and Dirac-oscillator fields), we report energy-levels ...
  • Energy levels of neutral atoms via a new perturbation method 
    Mustafa, Omar; Odeh, Maen (Inst Physıcs Acad Scı Czech Republıc, 2001)
    The energy levels of neutral atoms supported by Yukawa potential, V(r)=-Z exp(-\alpha r)/r, are studied, using both dimensional and dimensionless quantities, via a new analytical methodical proposal (devised to solve for ...