Stability of a two-electron system under pressure confinement: structural and quantum information theoretical analysis

S Mondal, A Sadhukhan, K Sen… - Journal of Physics B …, 2023 - iopscience.iop.org
The stability of a two-electron Zee system trapped inside an impenetrable spherical cavity is
analyzed using an explicitly correlated multi-exponent Hylleraas-type basis set in the …

Ground and doubly excited states of He atom in non-ideal classical plasmas: structural, entanglement and information theoretical measures

S Mondal, SK Nayek, JK Saha - The European Physical Journal Plus, 2022 - Springer
Structural properties of ground (1 s 2: 1 S e) and first doubly excited resonance (2 s 2: 1 S e)
states of He atom embedded in non-ideal classical plasma (NICP) environment are studied …

Benchmark calculations of Rényi, Tsallis entropies, and Onicescu information energy for ground state helium using correlated Hylleraas wave functions

JH Ou, YK Ho - International Journal of Quantum Chemistry, 2019 - Wiley Online Library
Accurate values of physical quantities serve as the step** stone for further researches.
Consequently, we provide benchmark values of Shannon, Rényi, Tsallis entropies, and …

Shannon entropy in confined He-like ions within a density functional formalism

S Majumdar, AK Roy - Quantum Reports, 2020 - mdpi.com
Shannon entropy in position (S r) and momentum (S p) spaces, along with their sum (S t) are
presented for unit-normalized densities of He, Li+ and Be 2+ ions, spatially confined at the …

Shannon, Rényi, Tsallis entropies and Onicescu information energy for low-lying singly excited states of helium

JH Ou, YK Ho - Atoms, 2019 - mdpi.com
Knowledge of the electronic structures of atomic and molecular systems deepens our
understanding of the desired system. In particular, several information-theoretic quantities …

Electron‐pair entropic and complexity measures in atomic systems

S López‐Rosa, AL Martín, J Antolín… - International Journal of …, 2019 - Wiley Online Library
The two‐electron atomic densities are analyzed in both position and momentum spaces in
terms of different information‐theoretic measures, such as disequilibrium, Shannon entropy …

Fisher information and Shannon entropy calculations for two-electron systems

I Nasser, A Abdel-Hady - Canadian Journal of Physics, 2020 - cdnsciencepub.com
Fisher information is calculated for the ground state of He-isoelectronic series, in position ()
space. The results are given and discussed as a function of the nuclear charge (Z) and the …

Information theoretic measures on the two-photon transitions of hydrogen atom embedded in weakly coupled plasma environment

S Mondal, JK Saha, PK Mukherjee, B Fricke - Physica Scripta, 2023 - iopscience.iop.org
The quantum information theoretic measures in terms of Shannon entropy and Fisher
entropy (both in position and momentum spaces) on the ground, excited as well as virtual …

Shannon information entropy in position space for the ground and singly excited states of helium with finite confinements

JH Ou, YK Ho - Atoms, 2017 - mdpi.com
We provide benchmark values for Shannon information entropies in position space for the
ground state and ls2s 1Se excited state of helium confined with finite confinement potentials …

Helium atom embedded in non‐ideal classical plasmas: Doubly excited singlet S states

N Das, A Ghoshal, YK Ho - Contributions to Plasma Physics, 2024 - Wiley Online Library
The influence of the non‐ideality (NI) of the classical plasmas on the doubly excited singlet S
states of the helium atom (He) embedded in the plasma has been investigated theoretically …