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19992026
most citedEnergy and system size dependence of chemical freeze-out in relativistic nuclear collisions

412 citations

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Showing 2010 · quant-phShow all

5 papers · 2 filters

quant-ph2010★ 12 cited

Two-electron entanglement in a two-dimensional isotropic harmonic trap: Radial correlation effects in the low density limit

Przemyslaw Koscik

We study a two-dimensional system of two Coulombically interacting electrons in an external harmonic confining potential. More precisely, we present calculations for the singlet gr…

quant-ph2010★ 2 cited

Coupled anharmonic oscillators: the Rayleigh-Ritz approach versus the collocation approach

Arkadiusz Kuros, Anna Okopinska

For a system of coupled anharmonic oscillators we compare the convergence rate of the variational collocation approach presented recently by Amore and Fernandez (2010 Phys.Scr.81 0…

quant-ph2010★ 1 cited

Comment on "Entanglement of two interacting bosons in a two-dimensional isotropic harmonic trap" [Phys. Lett. A 373 (2009) 3833]

Przemyslaw Koscik

The correct form of the Schmidt decomposition of the stationary wave functions for a system of two interacting particles trapped in a two-dimensional harmonic potential is given

quant-ph2010★ 12 cited

The optimized Rayleigh-Ritz scheme for determining the quantum-mechanical spectrum

Przemyslaw Koscik, Anna Okopinska

The convergence of the Rayleigh-Ritz method with nonlinear parameters optimized through minimization of the trace of the truncated matrix is demonstrated by a comparison with analy…

quant-ph2010★ 34 cited

Two-electron entanglement in elliptically deformed quantum dots

Przemyslaw Koscik, Anna Okopinska

Entropic entanglement measures of a two-dimensional system of two Coulombically interacting particles confined in an anisotropic harmonic potential are discussed in dependence on t…