纠的环境引起的突然死亡
M P Almeida1, F de Melo, M Hor-Meyll
1Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro RJ 21941-972, Brazil.
Science (New York, N.Y.)
|April 28, 2007
概括
量子纠可以突然消失,即使单个系统慢慢衰变. 纠的这种"突然死亡"是量子系统与其环境相互作用的反直觉现象.
科学领域:
- 量子物理学的量子物理学
- 量子信息科学是一种量子信息科学.
- 开放的量子系统是开放的.
背景情况:
- 纠的量子系统对环境相互作用非常敏感.
- 了解在现实条件下纠的动态是至关重要的.
- 不相干性通常会导致量子相关性的逐渐衰变.
研究的目的:
- 研究纠量子系统的局部和全球动态之间的差异.
- 探索当系统与独立环境相互作用时量子纠的行为.
- 为了识别和描述纠突发死亡的现象.
主要方法:
- 使用一个全光学实验设置.
- 研究与独立环境相结合的纠量子系统.
- 分析个体系统的衰变动态和整体纠.
主要成果:
- 证明了单粒子和全球动态之间的区别.
- 观察到量子纠的突然消失.
- 表明纠可以突然消失,尽管个体系统的非对称衰变.
结论:
- 纠突然死亡是量子纠的一个独特和反直觉的特征.
- 环境相互作用可以导致纠的快速丧失,无论单个系统的衰变.
- 这些发现凸显了开放量子系统中量子纠的脆弱性.
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