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Anna Okopinska
Anna Okopinska
WAT
Adresse e-mail validée de wat.edu.pl
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Nonstandard expansion techniques for the effective potential in λ φ 4 quantum field theory
A Okopińska
Physical Review D 35 (6), 1835, 1987
2951987
Nonstandard expansion techniques for the finite-temperature effective potential in λ quantum field theory
A Okopińska
Physical Review D 36 (8), 2415, 1987
721987
Optimized expansion in quantum field theory of massive fermions with (ψ¯ ψ) 2 interaction
A Okopińska
Physical Review D 38 (8), 2507, 1988
511988
Non-standard perturbative methods for the effective potential in λφ4 QFT
A Okopinska
International Centre for Theoretical Physics, 1986
391986
Accurate energy levels and partition function of a quantum-mechanical anharmonic oscillator
A Okopińska
Physical Review D 36 (4), 1273, 1987
381987
Two-electron entanglement in elliptically deformed quantum dots
P Kościk, A Okopińska
Physics Letters A 374 (37), 3841-3846, 2010
362010
Goldstone bosons in the Gaussian approximation
A Okopińska
Physics Letters B 375 (1-4), 213-216, 1996
331996
Correlation effects in the Moshinsky model
P Kościk, A Okopińska
Few-Body Systems 54 (7), 1637-1640, 2013
322013
Entanglement entropies in the ground states of helium-like atoms
P Kościk, A Okopińska
Few-Body Systems 55, 1151-1157, 2014
302014
A simple alternative to the relativistic Breit–Wigner distribution
F Giacosa, A Okopińska, V Shastry
The European Physical Journal A 57 (12), 336, 2021
262021
Optimized expansion for the effective action and multi-particle states in the scalar quantum field theory
A Okopinska
Annals of Physics 228 (1), 19-42, 1993
231993
The optimized Rayleigh–Ritz scheme for determining the quantum-mechanical spectrum
P Kościk, A Okopińska
Journal of Physics A: Mathematical and Theoretical 40 (35), 10851, 2007
172007
Exact finite reduced density matrix and von Neumann entropy for the Calogero model
O Osenda, FM Pont, A Okopińska, P Serra
Journal of Physics A: Mathematical and Theoretical 48 (48), 485301, 2015
142015
Fokker-Planck equation for bistable potential in the optimized expansion
A Okopińska
Physical Review E 65 (6), 062101, 2002
142002
Entanglement properties of the two-electron quasi-one dimensional Gaussian quantum dot
A Kuroś, A Okopińska
Few-Body Systems 56, 853-858, 2015
132015
Application of the Fröbenius method to the Schrödinger equation for a spherically symmetric potential: an anharmonic oscillator
P Kościk, A Okopińska
Journal of Physics A: Mathematical and General 38 (35), 7743, 2005
132005
Quasi-exact solutions for two interacting electrons in two-dimensional anisotropic dots
P Kościk, A Okopińska
Journal of Physics A: Mathematical and Theoretical 40 (5), 1045, 2007
122007
Determination of resonances by the optimized spectral approach
A Kuroś, P Kościk, A Okopińska
Journal of Physics A: Mathematical and Theoretical 46 (8), 085303, 2013
102013
Optimized perturbation method for the propagation in the anharmonic oscillator potential
A Okopińska
Physics Letters A 249 (4), 259-264, 1998
101998
Correlation and entanglement measures in trapped few-particle systems
A Okopińska
Journal of Physics: Conference Series 213 (1), 012004, 2010
92010
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