Connection between entanglement and the speed of quantum evolution

被引：67

作者：

Batle, J ^{[1
]}

Casas, M

Plastino, A

Plastino, AR

机构：

[1] Univ Illes Balears, Dept Fis, Palma de Mallorca 07122, Spain

[2] CSIC, IMEDEA, Palma de Mallorca 07122, Spain

[3] Natl Univ La Plata, CONICET, RA-1900 La Plata, Argentina

[4] Univ Pretoria, Dept Phys, ZA-0002 Pretoria, South Africa

来源：

PHYSICAL REVIEW A | 2005年 / 72卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.72.032337

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

It has been recently pointed out [V. Giovannetti, S. Lloyd, and L. Maccone, Europhys. Lett. 62, 615 (2003)] that, for certain classes of states, quantum entanglement enhances the "speed" of evolution of composite quantum systems, as measured by the time a given initial state requires to evolve to an orthogonal state. We provide here a systematic study of this effect for pure states of bipartite systems of low dimensionality, considering both distinguishable (two-qubits) subsystems, and systems constituted of two indistinguishable particles.

引用

页数：5

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