Two-electron entanglement in elliptically deformed quantum dots P Kościk, A Okopińska Physics Letters A 374 (37), 3841-3846, 2010 | 33 | 2010 |

Entanglement entropies in the ground states of helium-like atoms P Kościk, A Okopińska Few-Body Systems 55 (11), 1151-1157, 2014 | 30 | 2014 |

Correlation effects in the Moshinsky model P Kościk, A Okopińska Few-Body Systems 54 (7), 1637-1640, 2013 | 27 | 2013 |

The von Neumann entanglement entropy for Wigner-crystal states in one dimensional N-particle systems P Kościk Physics Letters A 379 (4), 293-298, 2015 | 23 | 2015 |

Entanglement in S states of two-electron quantum dots with Coulomb impurities at the center P Kościk Physics Letters A 377 (37), 2393-2397, 2013 | 23 | 2013 |

Exactly solvable model of two trapped quantum particles interacting via finite-range soft-core interactions P Kościk, T Sowiński Scientific Reports 8 (1), 1-11, 2018 | 22 | 2018 |

Entanglement in Hooke’s law atoms: an effect of the dimensionality of the space P Kościk, H Hassanabadi Few-Body Systems 52 (1), 189-192, 2012 | 19 | 2012 |

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 | 17 | 2007 |

Quantum correlations of a few bosons within a harmonic trap P Kościk Few-Body Systems 52 (1), 49-52, 2012 | 13 | 2012 |

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 | 13 | 2005 |

Optimized configuration interaction approach for trapped multiparticle systems interacting via contact forces P Kościk Physics Letters A 382 (36), 2561-2564, 2018 | 12 | 2018 |

Two-electron entanglement in a two-dimensional isotropic harmonic trap: Radial correlation effects in the low density limit P Kościk Physics Letters A 375 (3), 458-462, 2011 | 12 | 2011 |

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 | 12 | 2007 |

Entanglement in helium atom confined in an impenetrable cavity P Kościk, JK Saha The European Physical Journal D 69 (11), 1-4, 2015 | 11 | 2015 |

Three strongly correlated charged bosons in a one-dimensional harmonic trap: natural orbital occupancies P Kościk The European Physical Journal B 85 (6), 1-6, 2012 | 10 | 2012 |

Variational approach for interacting ultra-cold atoms in arbitrary one-dimensional confinement P Kościk, M Płodzień, T Sowiński EPL (Europhysics Letters) 123 (3), 36001, 2018 | 9 | 2018 |

Capturing nonexponential dynamics in the presence of two decay channels F Giacosa, P Kościk, T Sowiński Physical Review A 102 (2), 022204, 2020 | 8 | 2020 |

Exactly solvable model of two interacting Rydberg-dressed atoms confined in a two-dimensional harmonic trap P Kościk, T Sowiński Scientific Reports 9 (1), 1-10, 2019 | 8 | 2019 |

Ground-state entanglement properties of helium atom in a finite spherical cavity P Kościk, JK Saha Few-Body Systems 56 (10), 645-649, 2015 | 8 | 2015 |

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 | 8 | 2013 |