Autores
Sun Guohua
Título Quantum information entropies for a squared tangent potential well
Tipo Revista
Sub-tipo JCR
Descripción Physics Letters A
Resumen The particle in a symmetrical squared tangent potential well is studied by examining its Shannon information entropy and standard deviations. The position and momentum information entropy densities ρs(x), ρs(p) and probability densities ρ(x), ρ(p) are illustrated with different potential range L and potential depth U. We present analytical position information entropies Sx for the lowest two states. We observe that the sum of position and momentum entropies Sx and Sp expressed by Bialynicki-Birula-Mycielski (BBM) inequality is satisfied. Some eigenstates exhibit entropy squeezing in the position. The entropy squeezing in position will be compensated by an increase in momentum entropy. We also note that the Sx increases with the potential range L, while decreases with the potential depth U. The variation of Sp is contrary to that of Sx
Observaciones DOI 10.1016/j.physleta.2013.11.020
Lugar Amsterdam, Holanda
País Paises Bajos
No. de páginas 124-130
Vol. / Cap. Vol. 378, Issue 3
Inicio 2014-01-10
Fin
ISBN/ISSN