Hydrogen-like Plasmas under Endohedral Cavity

Abstract

Over the past few decades, confined quantum systems have emerged to be a subject of considerable importance in physical, chemical and biological sciences. Under such stressed conditions, they display many fascinating and notable physical and chemical properties. Here we address this situation by using two plasma models, namely a weakly coupled plasma environment mimicked by a Debye-Hückel potential (DHP) and an exponential cosine screened Coulomb potential (ECSCP). On the other hand, the endohedral confinement is achieved via a Woods-Saxon (WS) potential. The critical screening constant, dipole oscillator strength (OS) and polarizability are investigated for an arbitrary state. A Shannon entropy-based strategy has been invoked to study the phase transition here. An increase in Z leads to larger critical screening. Moreover, a detailed investigation reveals that there exists at least one bound state in such plasmas. Pilot calculations are conducted for some low-lying states (ℓ=1−5) using a generalized pseudo spectral scheme, providing optimal, non-uniform radial discretization.

Radiative dynamics of laser-driven Li@C n embedded in quantum plasma

“…The endofullerene shell is generally considered static because the atoms inside it are typically found in fixed positions. In this context, it is important to recognize that our model potential remains static, deliberately disregarding any potential impact the plasma might have on the endohedral cavity [44][45][46][47][48][49]. Our focus solely lies in exploring the impact of plasma and confinement on the behavior of the endohedral hydrogenic atom.…”