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Шығу күні бойынша Physics көру

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Шығу күні бойынша Physics көру

Көрінетін элементтер 41-60 из 231

Optimization of Arrays of Gold Nanodisks for Plasmon-Mediated Brillouin Light Scattering

Johnson, W. L.; Kim, S. A.; Utegulov, Z. N.; Shaw, J. M.; Draine, B. T. (2009)

Distributions of electric fields in two-dimensional arrays of gold nanodisks on a Si3N4 membrane, with light incident through the membrane, are modeled with the aim of determining array geometries for effective plasmon-mediated ...
Fundamental vibrational transitions of the 3He 4He+ and 7LiH+ ions calculated without assuming the Born-Oppenheimer approximation and with including leading relativistic corrections

Stanke, Monika; Bubin, Sergiy; Adamowicz, Ludwik (2009)

Very accurate variational calculations of the fundamental pure vibrational transitions of the 3He 4He+ and 7LiH+ ions are performed within the framework that does not assume the Born-Oppenheimer BO approximation. The ...
Algorithm for quantum-mechanical finite-nuclear-mass variational calculations of atoms with two p electrons using all-electron explicitly correlated Gaussian basis functions

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 ...
Non-Born–Oppenheimer calculations of the BH molecule

Bubin, Sergiy; Stanke, Monika; Adamowicz, Ludwik (2009)

Variational calculations employing explicitly correlated Gaussian basis functions have been performed for the ground state of the boron monohydride molecule BH and for the boron atom B . Up to 2000 Gaussians were used ...
Extending Hudson’s theorem to mixed quantum states

Mandilara, Aikaterini; Karpov, E.; Cerf, N. J. (2009)

According to Hudson’s theorem, any pure quantum state with a positive Wigner function is necessarily a Gaussian state. Here, we make a step toward the extension of this theorem to mixed quantum states by finding upper ...
Novel Multi-pixel Silicon Photon Detectors and Applications in T2K

Beznosko, Dmitriy (2009)

Nowadays, numerous fields such as High Energy Physics (HEP), medical imaging devices, portable radiation detectors etc., require a robust, miniature, reliable and readily available photon detector that is stable in ...
Light Pollution Intensity Monitoring with Novel Multi-pixel Silicon Photon Detectors

Beznosko, Dmitriy; Erpalov, A.; Rykalin, V.; Savinykh, V.; Yakovlev, A. (2010)

Nowadays, numerous fields such as Environmental sciences, High Energy Physics, medical imaging devices, portable radiation detectors, portable light intensity monitors etc., require a robust, miniature, reliable and ...
Analytical energy gradient in variational calculations of the two lowest 3P states of the carbon atom with explicitly correlated Gaussian basis functions

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 ...
In situ laser-based resonant ultrasound measurements of microstructure mediated mechanical property evolution

Hurley, D. H.; Reese, S. J.; Park, S. K.; Utegulov, Z.N.; Kennedy, J. R.; Telschow, K. L. (2010)

In situ laser-based resonant ultrasound spectroscopy is used to characterize the development of a recrystallized microstructure in a high purity copper sample. The modal shapes, used for mode identification, of several ...
Isotope shifts of the three lowest 1S states of the B+ ion calculated with a finite-nuclear-mass approach and with relativistic and quantum electrodynamics corrections

Bubin, Sergiy; Komasa, Jasek; Stanke, Monika; Adamowicz, Ludwik (2010)

We present very accurate quantum mechanical calculations of the three lowest S-states 1s22s2 1S0 , 1s22p2 1S0 , and 1s22s3s 1S0 of the two stable isotopes of the boron ion, 10B+ and 11B+. At the nonrelativistic level ...
Isotope shifts of the 1s22s2(1S0)→1s22 p2(1S0) transition in the doubly ionized carbon ion C2+

Bubin, Sergiy; Komasa, Jasek; Stanke, Monika; Adamowicz, Ludwik (2010)

Highly accurate quantum mechanical calculations are performed for the 1s22s2 (1S0)→1s22p2 (1S0) transition energy in the isotopomers of C2+ ion to determine the isotope shifts. Explicitly correlated Gaussian functions and ...
Thermodynamics and the naked singularity in the Gamma-metric

Lochan, K.; Malafarina, D.; Singh, T.P. (2010-09-23)

We investigate a possible way of establishing a parallel between the third law of black hole mechanics, and the strong version of the third law of thermodynamics. We calculate the surface gravity and area for a naked ...
Lower Rydberg 2D states of the lithium atom: Finite-nuclear-mass calculations with explicitly correlated Gaussian functions

Sharkey, Keeper L.; Bubin, Sergiy; Adamowicz, Ludwik (2011)

Very accurate variational nonrelativistic calculations are performed for the five lowest Rydberg 2D states (1s2nd1, n = 3, . . . ,7) of the lithium atom (7Li). The finite-nuclear-mass approach is employed and the ...
Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam

Beznosko, Dmitriy (2011)

The T2K experiment observes indications of ! e appearance in data accumulated with 1:43 1020 protons on target. Six events pass all selection criteria at the far detector. In a three- avor neutrino oscillation ...
Laser-induced electron emission from nanostructures: A first-principles study

Driscoll, Joseph A.; Bubin, Sergiy; Varga, Kalman (2011)

Time-dependent density functional theory simulation of laser-induced ionization is presented. Various test systems including a small wire-like molecule, C12H14, as well as carbon nanotubes with varying diameter are studied. ...
Accurate non-Born-Oppenheimer calculations of the complete pure vibrational spectrum of D2 with including relativistic corrections

Bubin, Sergiy; Stanke, Monika; Adamowicz, Ludwik (2011)

In this work we report very accurate variational calculations of the complete pure vibrational spectrum of the D2 molecule performed within the framework where the Born-Oppenheimer (BO) approximation is not assumed. After ...
Vibrational transitions of the 7LiH+ ion calculated without the Born–Oppenheimer approximation and with leading relativistic corrections

Bubin, Sergiy; Stanke, Monika; Adamowicz, Ludwik (2011)

We recently presented very accurate calculations of the fundamental vibrational frequency of the 7LiH+ and 3He4He+ ions [Stanke et al., Phys. Rev. A 79, 060501(R) (2009)] performed without the Born–Oppenheimer approximation ...
An algorithm for calculating atomic D states with explicitly correlated Gaussian functions

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 ...
Refinement of the experimental energy levels of higher 2D Rydberg states of the lithium atom with very accurate quantum mechanical calculations

Sharkey, Keeper L.; Bubin, Sergiy; Adamowicz, Ludwik (2011)

Very accurate variational non-relativistic calculations are performed for four higher Rydberg 2D states (1s2nd1, n = 8, . . . , 11) of the lithium atom (7Li). The wave functions of the states are expanded in terms of ...
Accurate variational calculations of the ground 2Po(1s22s22p) and excited 2S(1s22s2p2) and 2Po(1s22s23p) states of singly ionized carbon atom

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 ...