Entropic properties of D-dimensional Rydberg systems

I.V. Toranzo, D. Puertas-Centeno and J.S. Dehesa

Physica A: Statistical Mechanics and its Applications, 2016, vol. 462, issue C, 1197-1206

Abstract: The fundamental information-theoretic measures (the Rényi Rp[ρ] and Tsallis Tp[ρ] entropies, p>0) of the highly-excited (Rydberg) quantum states of the D-dimensional (D>1) hydrogenic systems, which include the Shannon entropy (p→1) and the disequilibrium (p=2), are analytically determined by use of the strong asymptotics of the Laguerre orthogonal polynomials which control the wavefunctions of these states. We first realize that these quantities are derived from the entropic moments of the quantum-mechanical probability ρ(r→) densities associated to the Rydberg hydrogenic wavefunctions Ψn,l,{μ}(r→), which are closely connected to the Lp-norms of the associated Laguerre polynomials. Then, we determine the (n→∞)-asymptotics of these norms in terms of the basic parameters of our system (the dimensionality D, the nuclear charge and the hyperquantum numbers (n,l,{μ}) of the state) by use of recent techniques of approximation theory. Finally, these three entropic quantities are analytically and numerically discussed in terms of the basic parameters of the system for various particular states.

Keywords: Entropic uncertainty measures of Shannon; Rényi and Tsallis types; D-dimensional hydrogenic systems; D-dimensional quantum physics; Rydberg states (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:462:y:2016:i:c:p:1197-1206

DOI: 10.1016/j.physa.2016.06.144

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