72 citations · 400 across the 20 of their papers we have counts for
21 papers
Degeneracy and metallic character in free and confined weakly coupled plasmas: with and without electric field
Neetik Mukherjee, Amlan K. Roy
Incidental degeneracy and metallic character is probed for weakly coupled plasmas in free and confined environments. The generality of incidental degeneracy in quantum mechanical s…
Information entropy in excited states in confined quantum systems
Sangita Majumdar, Neetik Mukherjee, Amlan K. Roy
The present contribution constitutes a brief account of information theoretical analysis in several representative model as well as real quantum mechanical systems. There has been…
Lower bound of the expressibility of ansatzes for Variational Quantum Algorithms
Tamojit Ghosh, Arijit Mandal, Shreya Banerjee +2
The expressibility of an ansatz used in a variational quantum algorithm is defined as the uniformity with which it can explore the space of unitary matrices, i.e., its covering num…
Confined H ion within a density functional framework
Sangita Majumdar, Neetik Mukherjee, Amlan K. Roy
Ground and excited states of a confined negative Hydrogen ion has been pursued under Kohn-Sham density functional approach by invoking a physically motivated work-function-based ex…
Hydrogen-like ions in plasma environment
Neetik Mukherjee, Chandra Nath Patra, Amlan K. Roy
The behavior of H-like ions embedded in astrophysical plasmas in the form of \emph{dense, strongly and weakly coupled} plasmas are investigated. In these, the increase and decrease…
Shell-confined atom and plasma: incidental degeneracy, metallic character and information entropy
Neetik Mukherjee, Amlan K. Roy
Shell confined atom can serve as a generalized model to explain both \emph{free} and \emph{confined} condition. In this scenario, an atom is trapped inside two concentric spheres o…
Information analysis in free and confined harmonic oscillator
Neetik Mukherjee, Amlan K. Roy
In this chapter we shall discuss the recent progresses of information theoretic tools in the context of free and confined harmonic oscillator. Confined quantum systems have provide…
Analysis of Compton profile through information theory in H-like atoms inside impenetrable sphere
Neetik Mukherjee, Amlan K. Roy
Confinement of atoms inside various cavities has been studied for nearly eight decades. However, the Compton profile for such systems has not yet been investigated. Here we constru…
Information entropy as a measure of tunneling and quantum confinement in a symmetric double-well potential
Neetik Mukherjee, Arunesh Roy, Amlan K. Roy
Information entropic measures such as Fisher information, Shannon entropy, Onicescu energy and Onicescu Shannon entropy of a symmetric double-well potential are calculated in both…
Information-Entropic Measures in Confined Isotropic Harmonic Oscillator
Neetik Mukherjee, Amlan K. Roy
Information based uncertainty measures like R{é}nyi entropy (R), Shannon entropy (S) and Onicescu energy (E) (in both position and momentum space) are employed to understand the in…
Quantum confinement in an asymmetric double-well potential through energy analysis and information entropic measure
Neetik Mukherjee, Amlan K. Roy
Localization of a particle in the wells of an asymmetric double-well (DW) potential is investigated here. Information entropy-based uncertainty measures, such as Shannon entropy, F…
Information entropic measures of a quantum harmonic oscillator in symmetric and asymmetric confinement within an impenetrable box
Abhisek Ghosal, Neetik Mukherjee, Amlan K. Roy
Information-based uncertainty measures like Shannon entropy, Onicescu energy and Fisher information (in position and momentum space) are employed to understand the effect of \emph{…
Information entropy and complexity measure in generalized Kratzer potential
Sangita Majumdar, Neetik Mukherjee, Amlan K. Roy
Shannon entropy (), Fisher information () and a measure equivalent to Fisher-Shannon complexity of a ro-vibrational state of diatomic molecules (O, O, NO…
Fisher information in confined isotropic harmonic oscillator
Neetik Mukherjee, Amlan K. Roy
Fisher information () is investigated in a confined harmonic oscillator (CHO) enclosed in a spherical enclosure, in conjugate and spaces. A comparative study between CHO…
Information-entropic measures for non-zero l states of confined hydrogen-like ions
Neetik Mukherjee, Amlan K. Roy
Relative Fisher information (IR), which is a measure of correlative fluctuation between two probability densities, has been pursued for a number of quantum systems, such as, 1D qua…
Relative Fisher information in some central potentials
Neetik Mukherjee, Amlan K. Roy
Relative Fisher information (IR), which is a measure of correlative fluctuation between two probability densities, has been pursued for a number of quantum systems, such as, 1D qua…
Quantum mechanical virial-like theorem for confined quantum systems
Neetik Mukherjee, Amlan K. Roy
Confinement of atoms inside impenetrable (hard) and penetrable (soft) cavities has been studied for nearly eight decades. However, a unified virial theorem for such systems has not…
Some complexity measures in confined isotropic harmonic oscillator
Neetik Mukherjee, Amlan K. Roy
Various well-known statistical measures like \emph{López-Ruiz, Mancini, Calbet} (LMC) and \emph{Fisher-Shannon} complexity have been explored for confined isotropic harmonic oscill…
Various complexity measures in confined hydrogen atom
Sangita Majumdar, Neetik Mukherjee, Amlan K. Roy
Several well-known statistical measures similar to \emph{LMC} and \emph{Fisher-Shannon} complexity have been computed for confined hydrogen atom in both position () and momentum…
Information-entropic measures in free and confined hydrogen atom
Neetik Mukherjee, Amlan K. Roy
Shannon entropy (), R{é}nyi entropy (), Tsallis entropy (), Fisher information () and Onicescu energy () have been explored extensively in both \emph{free} H atom (F…
Fisher information in confined hydrogen-like ions
Neetik Mukherjee, Sangita Majumdar, Amlan K. Roy
Fisher information (I) is investigated for confined hydrogen atom (CHA)-like systems in conjugate and spaces. A comparative study between CHA and free H atom (with respect…