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

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  • Test Field in sandwich Wave Space-Time 
    Halilsoy, Mustafa (Classical and Quantum Gravity, Institution of Physics (IOP) Publishing, 1997)
    Sandwich waves in the Einstein–Maxwell theory are expressed globally by introducing step functions at the boundaries. We show that a test particle crossing such a wave zone extracts energy from the sandwich wave.
  • Theorem to generate Einstein-Non Linear Maxwell Fields 
    Mazharimousavi, S. Habib; Gürtuğ, Özay; Halilsoy, Mustafa (Classical and Quantum Gravity, Institute of Physics (IOP) Publishing, 2010)
    We present a theorem in d-dimensional static, spherically symmetric spacetime in generic Lovelock gravity coupled with a non-linear electrodynamic source to generate solutions. The theorem states that irrespective of the ...
  • Thin-shell wormholes from the regular Hayward black hole 
    Halilsoy, Mustafa; Övgün, Ali; Mazharimousavi, S. Habib (The European Physical Journal C, Springer, 2014-03-13)
    We revisit the regular black hole found by Hayward in 4 -dimensional static, spherically symmetric spacetime. To find a possible source for such a spacetime we resort to the nonlinear electrodynamics in general relativity. ...
  • Thin-shell wormholes supported by total normal matter 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa (The European Physical Journal C, Springer, 2014)
    The Zipoy-Voorhees-Weyl (ZVW) spacetime characterized by mass (M) and oblateness (δ) is proposed in the construction of viable thin-shell wormholes (TSWs). Departure from spherical / cylindrical symmetry yields positive ...
  • A topological metric in 2+1-dimensions 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa (European Physical Journal C, Springer, 2015)
    Real-valued triplet of scalar fields as source gives rise to a metric which tilts the scalar, not the light cone, in 2+1-dimensions. The topological metric is static, regular and it is characterized by an integer κ=±1,±2,.... ...
  • Tunneling of Massive Vector Particles From Rotating Charged Black Strings 
    Jusufi, Kimet; Övgün, Ali (Springer, 2016-06-02)
    We study the quantum tunneling of charged massive vector bosons from a charged static and a rotating black string. We apply the standard methods, first we use the WKB approximation and the Hamilton-Jacobi equation, and ...
  • Tunnelling of vector particles from Lorentzian wormholes in 3+1 dimensions 
    Sakallı, İzzet; Övgün, Ali (THE EUROPEAN PHYSICAL JOURNAL PLUS, Springer, 2015-06-11)
    In this article, we consider the Hawking radiation (HR) of vector (massive spin-1) particles from the traversable Lorentzian wormholes (TLWH) in 3+1 dimensions. We start by providing the Proca equations for the TLWH. ...
  • Unified Bertotti-Robinson and Melvin Spacetimes 
    Halilsoy, Mustafa; Mazharimousavi, S. Habib (Physical Review D, American Physical Society (APS), 2013)
    We present a solution for the Einstein-Maxwell (EM) equations which unifies both the magnetic Bertotti-Robinson (BR) and Melvin (ML) solutions as a single metric in the axially symmetric coordinates t,ρ,z,φ. Depending on ...
  • Uninformed Hawking radiation 
    Sakallı, İzzet; Övgün, Ali (EPL, IOP Publishing (Institute of Physics), 2015-04-24)
    We show in detail that the Parikh-Wilczek tunneling method (PWTM), which was designed for resolving the information loss problem in Hawking radiation (HR) fails whenever the radiation occurs from an isothermal process. ...
  • Variational approach to the tunneling-time problem 
    Bracher, Christian; Rıza, Mustafa; Kleber, Markus (AMER PHYSICAL SOC, 1999)
    Tunneling problems are characterized by different quantum time scales of motion. In this paper, we identify a tunneling time scale, which is based on a simple variational principle. The method utilizes the stationary e ...
  • η-weak-pseudo-Hermiticity generators and exact solvability 
    Mustafa, Omar; Mazharimousavi, Habib S. (Springer, 2006)
    Exact solvability of some non-Hermitian η-weak-pseudo-Hermitian Hamiltonians is explored as a byproduct of η-weak-pseudo-Hermiticity generators. A class of V (x) = V (x) + i W (x) potentials is considered, where the imaginary ...
  • η-Weak-Pseudo-Hermiticity Generators and Radially Symmetric Hamiltonians 
    Mustafa, Omar; Mazharimousavi, Seyed Habib (SPRINGER/PLENUM PUBLISHERS, 2008-07)
    A class η-weak-pseudo-Hermiticity generators for spherically symmetric non- Hermitian Hamiltonians are presented. An operators-based procedure is introduced so that the results for the 1D Schrödinger Hamiltonian may very ...