Comparison between decoherence time for a two-state spin ½ system with its corresponding quantum retrieval period |
| |
Authors: | Afshin Shafiee Arash Tirandaz |
| |
Institution: | 1.Research Group on Foundation of Quantum Theory and Information, Department of Chemistry,Sharif University of Technology,Tehran,Iran |
| |
Abstract: | The evolution of a two-state quantum system (a spin ½ particle) in both the framework of standard quantum mechanics and under the decoherence regime is considered. The former approach on this issue is the well-known quantum flipping process of a dichotomic system subjected to a time-dependent magnetic field. In the latter approach, the Spin-Boson model is utilized to describe the interaction of system with its environment and the Born-Markov master equation is derived to obtain the decoherence time. It is possible to show that under certain conditions, one may find a potential conflict between the predictions of decoherence theory and the result observed in a typical quantum flipping experiment. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |