Entangled microwave photons from quantum dots

C. Emary; B. Trauzettel; C. W. J. Beenakker

doi:10.1103/PhysRevLett.95.127401

Entangled microwave photons from quantum dots

Mesoscale and Nanoscale Physics 2007-05-23 v2 Quantum Physics

Authors: C. Emary , B. Trauzettel , C. W. J. Beenakker

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Abstract

We describe a mechanism for the production of polarisation-entangled microwaves using intra-band 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 polarisations 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 inter-dot coupling.

Keywords

quantum entanglement photon pair generation polarization optics

Cite

@article{arxiv.cond-mat/0502550,
  title  = {Entangled microwave photons from quantum dots},
  author = {C. Emary and B. Trauzettel and C. W. J. Beenakker},
  journal= {arXiv preprint arXiv:cond-mat/0502550},
  year   = {2007}
}

Comments

4 pages, 5 figures

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