Entanglement detection for electrons via witness operators

被引：11

作者：

Faoro, Lara

Taddei, Fabio

机构：

[1] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

[2] CNR, INFM, NEST, I-56126 Pisa, Italy

[3] Scuola Normale Super Pisa, I-56126 Pisa, Italy

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.75.165327

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss an implementation of the entanglement witness, a method to detect entanglement with few local measurements, in systems where entangled electrons are generated both in the spin and orbital degrees of freedom. We address the efficiency of this method in various setups, including two different particle-hole entanglement structures, and we demonstrate that it can also be used to infer information on the possible dephasing afflicting the devices.

引用

页数：11

共 50 条

[1]

Awschalom DD, 2002, NANOSCI TECHNOL, P147

[2] Detection of entanglement with polarized photons: Experimental realization of an entanglement witness [J].