Quantum Zeno Control of Decoherence

作     者：Maniscalco, S. 

作者机构：Univ Turku Dept Phys & Astron Turku Ctr Quantum Phys FI-20014 Turku Finland 

出 版 物：《LASER PHYSICS》 (激光物理)

年 卷 期：2010年第20卷第5期

页      面：1251-1261页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Turku Collegium of Science and Medicine, Academy of Finland Emil Aaltonen Foundation Magnus Ehmrooth Foundation Vaisala Foundation 

主　　题：Quantum theory 

摘      要：We demonstrate the possibility of controlling the quantum to classical transition by means of the quantum Zeno and anti-Zeno effects. We consider a quantum harmonic oscillator initially prepared in a Schrodinger cat state and interacting with an engineered amplitude reservoir. We show that the environment induced decoherence transforming the cat state into a statistical mixture can be strongly inhibited by means of either appropriate sequences of measurements or shuttered reservoirs.