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Browsing Articles by Title
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Bubin, Sergiy; Stanke, Monika; Adamowicz, Ludwik
(2014)
Very accurate variational calculations of the complete pure vibrational spectrum of the ditritium (T2) molecule are performed within the framework where the Born-Oppenheimer approximation is not assumed. After separating ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2011)
In this article we report accurate nonrelativistic variational calculations of the ground and two excited states of C+ ion. We employ extended and well optimized basis sets of all-electron explicitly correlated Gaussians ...
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Tsitsas, N. L.; Valagiannopoulos, Constantinos
(Metamaterials, 2018)
The optimal parameters of a dielectric metasurface, composed of two alternating
rectangular rods, are investigated so that it exhibits significant enhancement in the −1-
diffracted order in the transmission region. An ...
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Valagiannopoulos, Constantinos; Askarpour, Amir Nader; Al`, Andrea
(2015)
Two-dimensionalmagnetostatic cloaks, evenwhen perfectly designed tomitigate the magnetic field disturbance
of a scatterer, may be still detectable with Aharonov-Bohm (AB) measurements, and therefore may affect
quantum ...
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Sharkey, Keeper L.; Pavanello, Michele; Bubin, Sergiy; Adamowicz, Ludwik
(2009)
A new algorithm for calculating the Hamiltonian matrix elements with all-electron explicitly correlated
Gaussian functions for quantum-mechanical calculations of atoms with two p electrons or a single d electron
have ...
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Joshi, Pankaj S.; Malafarina, D.
(2015-09-08)
Within the Lemaˆıtre-Tolman-Bondi formalism for gravitational collapse of inhomogeneous dust we analyze the parameter space that leads to the formation of a globally covered singularity (i.e. a black hole) when some ...
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Bubin, Sergiy; Adamowicz, Ludwik; Molski, Marcin
(2005)
In this work we study the ground and the first vibrationally excited states of LiH molecule. We performed an extensive nonrelativistic variational calculations of the two states without using the Born–Oppenheimer approximation. ...
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Sharkey, Keeper L.; Bubin, Sergiy; Adamowicz, Ludwik
(2011)
An algorithm for the variational calculation of atomic D states employing n-electron explicitly correlated
Gaussians is developed and implemented. The algorithm includes formulas for the first derivatives
of the Hamiltonian ...
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Foo, Joshua; Good, Michael R. R.; Mann, Robert B.
(Universe, 2021-09-20)
We derive a correspondence between the Hawking radiation spectra emitted from general classes of Taub-NUT black holes with that induced by the relativistic motion of an accelerated Dirichlet boundary condition (i.e., a ...
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Sharkey, Keeper L.; Bubin, Sergiy; Adamowicz, Ludwik
(2010)
Variational calculations of ground and excited bound states on atomic and molecular systems
performed with basis functions that explicitly depend on the interparticle distances can generate
very accurate results provided ...
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Valagiannopoulos, Constantinos; Tsitsas, Nikolaos L.; Sihvola, Ari H.
(Nazarbayev University School of Science and Technology, 2016-08-18)
A ground-penetrating radar (GPR) antenna excites a perfectly electric conducting inclusion buried inside the ground. The scattering problem is solved semi-analytically via integral equation techniques. The permittivity and ...
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Tsitsas, Nikolaos L.; Valagiannopoulos, Constantinos
(Journal of the Optical Society of America B, 2017-03-15)
Plane wave scattering by a planar metasurface composed of two periodically alternating rectangular dielectric rods
is considered. A rigorous integral equation methodology is employed for the analysis and the accurate ...
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Oikonomou, Th.; Baris Bagci, G.
(2009)
The recent generalizations of the Boltzmann–Gibbs statistics mathematically rely
on the deformed logarithmic and exponential functions defined through some deformation parameters. In the present work, we investigate whether ...
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Good, Michael R.R.; Ong, Yen Chin
(2014)
A (3+1)-dimensional asymptotically at Kerr black hole angular speed + can be used to de ne an e ective spring constant, k = m2 +. Its maximum value is the Schwarzschild
surface gravity, k = , which rapidly weakens as ...
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Coker, Zachary; Troyanova‐Wood, Maria; Traverso, Andrew J.; Yakupov, Talgat; Utegulov, Zhandos; Yakovlev, Vladislav V.
(Optics Express, 2018-02)
Brillouin spectroscopy and imaging has experienced a renaissance in recent years seeing vast improvements in methodology and increasing number of applications. With this resurgence has come the development of new spontaneous ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2012)
Benchmark variational calculations are performed for the six lowest states of the 1Po 1s22snp state series of the 9Be atom. The wave functions of the states are expanded in terms of all-particle, explicitly correlated ...
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Rakhymzhanov, A. M.; Gueddida, A.; Alonso-Redondo, E.; Utegulov, Zhandos; Perevoznik, D.; Kurselis, K.; Chichkov, B. N.; El Boudouti, E. H.; Djafari-Rouhani, B.; Fytas, G.
(Applied Physics Letters, 2016-05)
The phononic band diagram of a periodic square structure fabricated by femtosecond laser pulseinduced
two photon polymerization is recorded by Brillouin light scattering (BLS) at hypersonic
(GHz) frequencies and computed ...
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Malafarina, Daniele
(MDPI, 2018-08-28)
Quantum resolutions of the space-time singularity at the end of gravitational collapse may
provide hints towards the properties of a final theory of Quantum-Gravity. The mechanism by which
the singularity is avoided and ...
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Anderson, Paul R.; Good, Michael R.R.; Evans, Charles R.
(2015)
An exact correspondence is shown between a new moving mirror trajectory in
(1+1)D and a spacetime in (1+1)D in which a black hole forms from the collapse of
a null shell. It is shown that the Bogolubov coe cients between ...
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Good, Michael R.R.; Anderson, Paul R.; Evans, Charles R.
(2016)
There is an exact correspondence between the simplest solution to Einstein's equa-
tions describing the formation of a black hole and a particular moving mirror tra-
jectory. In both cases the Bogolubov coe cients in 1+1 ...