Phase-Space Position-Momentum Correlation and Potentials

Entropy

Humberto G. Laguna¹ 

[1] Departamento de Química, Universidad Autónoma Metropolitana, San Rafael Atlixco No. 186, Iztapalapa, 09340 Mexico D.F., Mexico; E-Mail

关键词: Wigner function;    position-momentum correlation;    localization phase-space distribution;   

DOI  :  10.3390/e15051516

来源: mdpi

【 摘 要 】

Solutions to the radial Schrödinger equation of a particle in a quantum corral are used to probe how the statistical correlation between the position, and the momentum of the particle depends on the effective potential. The analysis is done via the Wigner function and its Shannon entropy. We show by comparison to the particle-in-a-box model that the attractive potential increases the magnitude of the correlation, while a repulsive potential decreases the magnitude of this correlation. Varying the magnitude of the repulsive potential yields that the correlation decreases with a stronger repulsive potential.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.