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Browsing Physics by Issue Date
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Joshi, Pankaj S.; Malafarina, D.
(2012-01-19)
It is now known that when a massive star collapses under the force of its own gravity,
the final fate of such a continual gravitational collapse will be either a black hole or a
naked singularity under a wide variety of ...
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Goswami, Rituparno; Joshi, Pankaj S.; Malafarina, D.
(2012-02-28)
We analyze here the final fate of complete gravitational collapse of a massless scalar field within general relativity. A class of dynamical solutions with initial data close to the Friedmann-Lemaˆıtre-Robertson-Walker ...
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Asle Zaeem, M.; El Kadiri, H.; Horstemeyer, M.F.; Khafizov, M.; Utegulov, Z.
(Current Applied Physics, 2012-03-01)
Abstract Phase stability, topology and size evolution of precipitates are important factors in determining the mechanical properties of crystalline materials. In this article, the Cahn–Hilliard type of phase-field model ...
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Chowdhury, Anirban N.; Patil, Mandar; Malafarina, D.; Joshi, Pankaj S.
(2012-04-19)
We study here circular timelike geodesics in the Janis-Newman-Winicour and Gamma metric spacetimes which contain a strong curvature naked singularity and reduce to the Schwarzschild metric for a specific value of one of ...
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Joshi, Pankaj S.; Malafarina, D.; Saraykar, Ravindra V.
(2012-07-04)
We investigate here the genericity and stability aspects for naked singularities and black holes that arise as the final states for a complete gravitational collapse of a spherical massive matter cloud. The form of the ...
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Joshi, Pankaj S.; Malafarina, D.
(2012-11-14)
We investigate here the spectrum of gravitational collapse endstates when arbitrarily small perfect fluid pressures are introduced in the classic black hole formation scenario as described by Oppenheimer, Snyder and Datt ...
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Bubin, Sergiy; Russakoff, A.G.; Varga, K.
(2013)
In the framework of real-time real-space time-dependent density functional theory complemented with Ehrenfest molecular dynamics we have studied the response of
nanostructures to intense femtosecond laser pulses. Examples ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2013)
Accurate variational quantum-mechanical calculations are performed for the nine lowest 2S (1s2ns), n =
2, . . . ,10 states of the lithium atom. The effect of the finite nuclear mass is explicitly included in the ...
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Mitroy, Jim; Bubin, Sergiy; Horiuchi, Wataru; Suzuki, Yasuyuki; Adamowicz, Ludwik; Cencek, Wojciech; Szalewicz, Krzysztof; Komasa, Jacek; Blume, D.; Varga, Ka´lma´n
(2013)
The variational method complemented with the use of explicitly correlated Gaussian basis functions
is one of the most powerful approaches currently used for calculating the properties of few-body
systems. Despite its ...
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Bubin, Sergiy; Prezhdo, Oleg V., K´alm´an Varga
(2013)
The stability of tripositronium, a system consisting of three electrons and three positrons, has been investigated
systematically by varying the repulsion strength between like-charged particles. The possibility of the ...
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Baris Bagci, G.; Oikonomou, Th.
(2013)
It is often stated that heat bathswith finite degrees of freedom i.e., finite baths, are sources of Tsallis distributions for classical Hamiltonian systems. By using well-known fundamental statistical mechanics expressions, ...
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Every, A. G.; Utegulov, Z. N.; Veres, I. A.
(2013)
An approach is presented for calculating thermoelastic generation of ultrasound in a metal plate exposed to nanosecond pulsed laser heating, sufficient to cause melting but not ablation. Detailed consideration is given to ...
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Bubin, Sergiy; Prezhdo, Oleg V.
(2013)
Using a variational method with an explicitly correlated Gaussian basis, we study the eþ-Li and eþ-Be
complexes in the ground and lowest excited states with higher spin multiplicity. Our calculations provide
rigorous ...
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Bubin, Sergiy; Sharkey, Keeper L.; Adamowicz, Ludwik
(2013)
Very accurate variational nonrelativistic finite-nuclear-mass calculations employing all-electron explicitly correlated Gaussian basis functions are carried out for six Rydberg 2D states (1s2nd, n= 6, . . . , 11) of the ...
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Beznosko, Dmitriy
(2013)
T2K has performed the first measurement of νμ inclusive charged current interactions on carbon at
neutrino energies of ∼1 GeV where the measurement is reported as a flux-averaged double differential
cross section in muon ...
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Beznosko, Dmitriy
(2013)
The T2K collaboration reports evidence for electron neutrino appearance at the atmospheric mass splitting, j m2 32j 2:4 103 eV2. An excess of electron neutrino interactions over background is observed from a muon ...
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Good, Michael R.R.
(2013-01-22)
This work investigates an upper-limit of charge for a black hole in a nonlinear Newtonian theory of gravity. The charge is accumulated via protons fired isotropically at the black hole. This theoretical study of gravity ...
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Good, Michael R.R.
(2013-02-01)
A single real scalar field of spin zero obeying the Klein-Gordon equation in flat spacetime under external conditions is considered in the context of the spin-statistics connection. An imposed accelerated boundary on the ...
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Good, Michael R.R.; Anderson, Paul R.; Evans, Charles R.
(2013-03-28)
Particle production due to a quantized, massless, minimally coupled scalar eld in two-dimensional at spacetime with an accelerating mirror is investigated, with a focus on the time dependence of the process. We analyze ...
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Bambi, Cosimo; Malafarina, D.; Modesto, Leonardo
(2013-08-07)
We consider general relativistic homogeneous gravitational collapses for dust and radiation. We show that replacing the density profile with an effective density justified by some quantum gravity framework leads to the ...