Wigner distribution function of superposed quantum states for a time-dependent oscillator-like Hamiltonian system

الموضوعات : Journal of Theoretical and Applied Physics

Jeong Ryeol Choi ¹ , Ji Nny Song ² , Seong Ju Hong ³

1 - Department of Radiologic Technology, Daegu Health College
2 - Department of Safety Engineering, Chungbuk National University
3 - Department of Safety Engineering, Chungbuk National University

تاريخ التأكيد : 17 السبت , محرم, 1434 تاريخ الإصدار : 17 السبت , محرم, 1434

الکلمات المفتاحية: Wigner distribution function, Coherent state, Squeezed state, Time, dependent Hamiltonian, 03.65, W, 03.65.Ca, 42.50.St,

ملخص المقالة :

AbstractA phase space distribution function of quantum mechanics, so-called the Wigner distribution function (WDF), for superposed states of the general time-dependent oscillator-like Hamiltonian system is investigated. Superposition of not only two different coherent states but also two different squeezed states are considered respectively. Analytical representation of WDF for the superposition states is derived rigorously on the basis of fundamental relations. We confirmed the existence of nonclassical properties in the system from the appearance of interference term in the WDF.