The effect of spatial and other external confinements on the ground and excited state energy
levels of many electron atoms, ions and exotic systems is discussed. Special emphasis is …

We present in this review our recent theoretical studies on atomic processes subject to the
plasma environment including the α and β emissions and the ground state photoabsorption …

We have obtained the bound 1s2 1S, 1s2s 1, 3S, and 1s2p 1, 3P states energies of helium
atom in dense plasma environments in accurate variation calculations. A screened Coulomb …

We present a theoretical study of the transition energies ω and the oscillator strengths gf for
the C-like ions (with Z from 14–36) subject to plasma environment for atomic transitions …

We have shown recently that the redshifts of the isolated emission lines of the H-like and He-
like ions subject to outside dense plasma environment could be estimated by carefully …

Resonance states of C 4+, O 6+, Ne 8+ ions interacting with screened Coulomb potentials
have been investigated using the stabilization method. We employ highly correlated …

We present a detailed analysis of the plasma-induced resonance-like atomic structures near
the ionization threshold in one-and two-photon ionization of hydrogen atom. Such …

We present a detailed theoretical study on the photoionization of one-and two-electron
atoms subject to an external changing plasma environment based on the Debye-Hückel …

By carefully following the spatial and temporal criteria of the Debye-Hückel (DH)
approximation, we present a detailed theoretical study on the redshifts of the …

Extensive non-relativistic variational calculations for estimating the energy values of 2pnd
(Do1, 3) states [n= 3–6] of two electron atoms (He, Li+, Be2+) and 2pnp (Pe1)[n= 3–8] and …