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Information-Theoretic-Based Spreading Measures of Orthogonal Polynomials
- Source :
- Complex Analysis and Operator Theory. 6:585-601
- Publication Year :
- 2011
- Publisher :
- Springer Science and Business Media LLC, 2011.
-
Abstract
- The macroscopic properties of a quantum system strongly depend on the spreading of the physical eigenfunctions (wavefunctions) of its Hamiltonian operador over its confined domain. The wavefunctions are often controlled by classical or hypergeometric-type orthogonal polynomials (Hermite, Laguerre and Jacobi). Here we discuss the spreading of these polynomials over its orthogonality interval by means of various information-theoretic quantities which grasp some facets of the polynomial distribution not yet analyzed. We consider the information-theoretic lengths closely related to the Fisher information and R\'enyi and Shannon entropies, which quantify the polynomial spreading far beyond the celebrated standard deviation.<br />Comment: 17 pages
- Subjects :
- Pure mathematics
Polynomial
Hermite polynomials
Applied Mathematics
FOS: Physical sciences
Mathematical Physics (math-ph)
Computational Mathematics
symbols.namesake
Computational Theory and Mathematics
33C45, 94A17, 62B10, 65C60
Orthogonal polynomials
Laguerre polynomials
symbols
Quantum system
Wave function
Hamiltonian (quantum mechanics)
Fisher information
Mathematical Physics
Mathematics
Subjects
Details
- ISSN :
- 16618262 and 16618254
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Complex Analysis and Operator Theory
- Accession number :
- edsair.doi.dedup.....4b4701e09948cdf89485ff5a25148b3f