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Browsing Articles by Title
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Bubin, Sergiy; Adamowicz, Ludwik
(2009)
High-accuracy nonrelativistic variational calculations employing explicitly correlated Gaussian basis functions have been performed to determine the energies and the expectation values of some operators for the lowest four ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2007)
Non-Born-Oppenheimer variational calculations employing explicitly correlated Gaussian basis functions have been performed for the ground states of the beryllium monohydride molecule BeH and its ion BeH+ , as well as ...
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Kong, Lingyao; Malafarina, D.; Bambi, Cosimo
(2014-08-04)
In general relativity, gravitational collapse of matter fields ends with the formation
of a spacetime singularity, where the matter density becomes infinite and standard physics breaks down. According to the weak cosmic ...
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de Wijn, A. S.; Hess, B.; Fine, B. V.
(American Physical Society, 2015-12-30)
We perform a numerical investigation of the Lyapunov spectra of chaotic dynamics in lattices of classical spins in the vicinity of second-order ferromagnetic and antiferromagnetic phase transitions. On the basis of this ...
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Beznosko, Dmitriy
(2015)
We have characterised Water-based Liquid Scintillator (WbLS) using low energy protons,
UV-VIS absorbance, and fluorescence spectroscopy. We have also developed and validated a
simulation model that describes the behaviour ...
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Bubin, Sergiy; Bednarz, Eugeniusz; Adamowicz, Ludwik
(2005)
Expanding the wave functions of the ground and excited states of HD1 ~or pde) in terms of spherically symmetric explicitly correlated Gaussian functions with preexponential multipliers consisting of powers of the internuclear ...
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Bubin, Sergiy; Leonarski, Filip; Stanke, Monika; Adamowicz, Ludwik
(2009)
Very accurate variational calculations of all rotationless states also called pure vibrational states of the HD molecule have been performed within the framework that does not assume the Born–Oppenheimer BO approximation. ...
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Hizanidis, J.; Lazarides, N.; Neofotistos, G.; Tsironis, G. P.
(European Physical Journal: Special Topics, 2016-09-01)
One-dimensional arrays of Superconducting QUantum Interference Devices (SQUIDs) form magnetic metamaterials exhibiting extraordinary properties, including tunability, dynamic multistability, negative magnetic permeability, ...
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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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Malafarina, Daniele
(Universe, 2017-05-26)
In the last four decades, different programs have been carried out aiming at understanding
the final fate of gravitational collapse of massive bodies once some prescriptions for the behaviour of gravity in the strong field ...
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Baris Bagci, G.; Oikonomou, Th.
(2015)
Bento et al. [Phys. Rev. E 91, 022105 (2015)] state that the Tsallis entropy violates the third law of thermodynamics for q 0 and 0 < q < 1. We show that their results are valid only for q 1, since there is no distribution ...
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Malafarina, D.; Joshi, Pankaj S.
(2015)
We develop here a procedure to obtain regular static configurations as resulting from dynamical gravitational collapse of a massive matter cloud in general relativity. Under certain general physical assumptions for the ...
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Stanke, Monika; Ke¸dziera, Dariusz; Bubin, Sergiy; Adamowicz, Ludwik
(2008)
We report the implementation of the complete set of the lowest-order relativistic corrections of the order of
2 where is the fine structure constant for calculating vibrational states of diatomic molecular systems
within ...
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Bubin, Sergiy; Stanke, Monika; Adamowicz, Ludwik
(2011)
All 18 bound pure vibrational levels of the HD molecule have been calculated within the framework that does not assume the Born-Oppenheimer (BO) approximation. The nonrelativistic energies of the states have been corrected ...
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Stanke, Monika; Kedziera, Dariusz; Molski, Marcin; Bubin, Sergiy; Barysz, Maria; Adamowicz, Ludwik
(2006)
Very accurate quantum mechanical calculations of the pure vibrational spectrum of the HeH molecular
ion are reported and compared with newly obtained pure vibrational transitions extracted from the
available experimental ...
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Hennig, D.; Mulhern, C.; Schimansky-Geier, L.; Tsironis, G.P.; Hänggi, P.
(Physics Reports, 2015-07-20)
Abstract The physics of activated escape of objects out of a metastable state plays a key role in diverse scientific areas involving chemical kinetics, diffusion and dislocation motion in solids, nucleation, electrical ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2011)
Benchmark variational calculations of the four lowest 2P and 2S states of the boron atom (including the ground state) have been performed. The wave functions of the states have been expanded in terms of all-particle ...
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Kedziera, Dariusz; Stanke, Monika; Bubin, Sergiy; Barysz, Maria; Adamowicz, Ludwik
(2006)
The Pauli approach to account for the mass-velocity and Darwin relativistic corrections has been
applied to the formalism for quantum mechanical molecular calculations that does not assume the
Born-Oppenheimer BO ...
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Ke¸dziera, Dariusz; Stanke, Monika; Bubin, Sergiy; Barysz, Maria; Adamowicz, Ludwik
(2006)
The Darwin and mass-velocity relativistic corrections have been calculated for all pure vibrational
states of the H2 using the perturbation theory and very accurate variational wave functions obtained
without assuming ...
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Joshi, Pankaj S.; Malafarina, D.; Narayan, Ramesh
(2014-05-06)
We show that, in principle, a slowly evolving gravitationally collapsing perfect fluid cloud can asymptotically settle to a static spherically symmetric equilibrium configuration with a naked singularity at the center. We ...