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146 414 (0,275s)

Result

Density fitting for derivatives of Coulomb integrals in ab initio calculations using mixed Gaussian and plane-wave basis

coordinates by means of density fitting. Symbols k1 andk2 stand for plane-wave functions andg1 and g2 for gaussians. The study was undertaken with the objective to accelerate electronic structure and electron scattering ca...

CF - Fyzikální chemie a teoretická chemie

  • 2009
  • Jx
Result

Evaluation of Molecular Integrals in a Mixed Gaussian and Plane-Wave Basis by Means of the Fadeeva Function and Its Derivatives.

Original scientific paper dealing with Evaluation of Molecular Integrals in a Mixed Gaussian and Plane-Wave Basis by Means of the Fadeeva Function and Its Derivatives....

CF - Fyzikální chemie a teoretická chemie

  • 1998
  • Jx
Result

Efficient evaluation of Coulomb integrals in a mixed Gaussian and plane-wave basis using the density fitting and Cholesky decomposition

in wave-function MO and density functional theory-type calculations using mixed Gaussian and plane-wave basis sets. The crucial issues for achieving such a high)|g1(2)g2(2)), where k and...

CF - Fyzikální chemie a teoretická chemie

  • 2012
  • Jx
  • Link
Result

Efficient Evaluation of the Matrix Elements of the Coulomb Potential between Plane Waves and Gaussians.

matrix elements for the H2 molecule with Cartesian Gaussian basis set are reported.We present an efficient method for the calculation of matrix elements between two plane waves interacting with a molecula...

CF - Fyzikální chemie a teoretická chemie

  • 2002
  • Jx
Result

Efficient evaluation of Coulomb integrals in a mixed Gaussian and plane-wave basis

for the electronic structure theory in attempts to use mixed Gaussian and plane-wave basis sets.An efficient way of calculation is presented for matrix elements between two plane wav...

CF - Fyzikální chemie a teoretická chemie

  • 2007
  • Jx
Result

Evaluation of Molecular Integrals in a Mixed Gaussian and Plane-Wave Basis by Rys Quadrature

BG - Jaderná, atomová a molekulová fyzika, urychlovače

  • 1998
  • Jx
Result

Set of dielectric lens for focusation of EM wave

Designed and fabricated dielectric lenses provide a creation of exactly defined EM waves focused into a particular place. In the case of creation of a plane wave, the dielectric lenses increase a gain of antennas and create...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2008
  • Gfunk
Result

Excitation of helium Rydberg states and doubly excited resonances in strong extreme ultraviolet fields: Full-dimensional quantum dynamics using exponentially tempered Gaussian basis sets

Recently optimized exponentially tempered Gaussian basis sets [P. R. Kapralova basis sets (typically limited by a number of partial waves, density, and spatial extent of the basis functio...

BL - Fyzika plasmatu a výboje v plynech

  • 2013
  • Jx
  • Link
Result

Near-field Measurement of Gaussian Beam behind Dielectric Lens

-field in the distance of 0.4m for the plane wave radiation and has a very wide beam-width. In case of adding and using of dielectric lens, the plane wave is created at the distance of 92mm with the Gaussian

JA - Elektronika a optoelektronika, elektrotechnika

  • 2007
  • D
Result

Efficient evaluation of exchange integrals by means of Fourier transform of the 1/r operator and its numerical quadrature

integrals of the(gk|gk) type in the hybrid Gaussian and plane-wave basis. Accuracy number of plane waves in the Fourier expansion while still keeping necessary accuracy......

CF - Fyzikální chemie a teoretická chemie

  • 2014
  • Jx
  • Link
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