Dynamic statistical properties of squeezed coherent state superpositions |
| |
Authors: | J.S. Sales N.G. de Almeida |
| |
Affiliation: | 1. Unucet, Universidade Estadual de Goiás, 75.132-903, Anápolis (GO), Brazil;2. Instituto de Física, Universidade Federal de Goiás, 74.001-970, Goiânia (GO), Brazil |
| |
Abstract: | We carried out a study of statistical properties of a squeezed coherent state superposition (SCSS) evolving under a thermal reservoir at zero and finite temperature. Our results reveal some peculiarities not noticed by previous studies, which were mainly focused on ideal (lossless) properties of SCSS. Our main results indicate the existence of realistic parameters for which SCSS, at zero absolute, remains sub-Poissonian or squeezed asymptotically, while, at finite temperature, we found that SCSS only loses its squeezing or sub-Poissonian character at large times as compared with the time needed to the SCSS become a complete mixture. |
| |
Keywords: | Squeezed coherent state superpositions Statistical properties of squeezed states Sub-Poissonian statistics |
本文献已被 ScienceDirect 等数据库收录! |
|