Quantum limits to dynamical evolution

被引：307

作者：

Giovannetti, V

Lloyd, S

Maccone, L

机构：

[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA

[2] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW A | 2003年 / 67卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.67.052109

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We establish the minimum time it takes for an initial state of mean energy E and energy spread DeltaE to move from its initial configuration by a predetermined amount. Distances in Hilbert space are estimated by the fidelity between the initial and final states. In this context, we study the role of entanglement among subsystems in speeding up the dynamics of a composite system.

引用

页数：8

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