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Your search keyword '"Varga, Kálmán"' showing total 3 results
3 results on '"Varga, Kálmán"'

1. Stochastic Variational Approach to Few-Body Problems in Condensed Matter Physics.

Author

Varga, Kálmán

Subjects
*FEW-body problem, *CONDENSED matter, *VARIATIONAL principles, *PROBLEM solving, *MAGNETIC fields, *ATOMIC spectra, *ELECTRON gas
Abstract

The stochastic variational method is a powerful approach to solve few-body problems. The application of the stochastic variational approach to few-body problems in condensed matter physics is presented. The examples include calculation of energy spectra of atoms in magnetic field, confined atoms and trapped Fermi gases. [ABSTRACT FROM AUTHOR]

Published
2011
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2. Biexciton in magnetic fields.

Author

Varga, Kálmán

Subjects
*MAGNETIC fields, *BINDING energy, *EXCITON theory, *POSITRONS, *STOCHASTIC analysis
Abstract

The binding energy and structure of biexcitons in strong magnetic field is investigated using the stochastic variational method. The magnetic field confines the electrons and positrons in a small volume leading to Wigner-crystal like states of particles. [ABSTRACT FROM AUTHOR]

Published
2010
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3. Matrix Elements of One Dimensional Explicitly Correlated Gaussian Basis Functions.

Author

Zaklama, Timothy, Zhang, David, Rowan, Keefer, Schatzki, Louis, Suzuki, Yasuyuki, and Varga, Kálmán

Subjects
*GAUSSIAN function, *MATRICES (Mathematics), *POLYNOMIALS
Abstract

Kinetic, potential and overlap matrix elements of one dimensional correlated Gaussians multiplied by polynomial factors are presented. These matrix elements can be used to calculate energies of one dimensional cold atom systems, or to construct a tensorial product to calculate energies in 2 or 3 dimensional systems with a nonspherical potential. [ABSTRACT FROM AUTHOR]

Published
2020
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