Abstract This paper examines the dynamics of a W-configuration four-level atom in quantized cavity field and system driven by an external classical field. By applying some canonical transformations, we derive analytical solutions to Schrödinger equation for corresponding Hamiltonian. We have analyzed impact detuning parameters on system’s relative entropy coherence, Wigner function, Pancharatna...

 Casimir entropy is an important aspect of casimir effect and at the nanoscale is visible. In this paper, we employ the path integral method to ‎obtain a‎ ‎general‎ relation for casimir entropy and ‎i‎nternal energy of arbitrary shaped objects in the presence of two, three and four dimension scalar fields and ‎the‎ electromagnetic field. For this purpose, using Lagrangian and based on a perturb...

The total uncertainty measurement of basic probability assignment (BPA) in Dempster-Shafer evidence theory (DSET) has always been an open issue. Although some scholars put forward various measurements and entropies BPA, due to the existence discord non-specificity, there is no method can measure BPA reasonably. In order utilize practical decision-making, pignistic transformation a significant m...