Emission of polarization-entangled microwave photons from a pair of quantum dots

被引：35

作者：

Emary, C ^{[1
]}

Trauzettel, B ^{[1
]}

Beenakker, CWJ ^{[1
]}

机构：

[1] Leiden Univ, Inst Lorentz, NL-2300 RA Leiden, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.95.127401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe a mechanism for the production of polarization-entangled microwaves using intraband transitions in a pair of quantum dots. This proposal relies neither on spin-orbit coupling nor on control over electron-electron interactions. The quantum correlation of microwave polarizations is obtained from orbital degrees of freedom in an external magnetic field. We calculate the concurrence of emitted microwave photon pairs and show that a maximally entangled Bell pair is obtained in the limit of weak interdot coupling.

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页数：4

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