报告题目:Quantum control by noise (噪声量子控制)
报 告 人:景俊 (浙江大学物理学系光学研究所)
报告时间:2017年4月10日(周一)14:00
报告地点:校本部G401
邀请人:陈玺 教授
报告摘要:
A common philosophy in control theory is the control of disorder by order. Control of quantum system is no exception; strategies aimed at suppressing quantum decoherence and engineering the state of the system adopt this point of view. Here we analysis the effect of the noise on the evolution and adiabatic passage of open quantum system. Then we demonstrate an anomalous phenomenon in open quantum systems-control of disorder by (even more) disorder. It is shown that nonperturbative quantum control can be achieved using the most disordered white noise field. This phenomenon guides us to look for the key ingredient in determining the effect of quantum control, such as dynamical decoupling.