Phys. Rev. Lett. 95, 127401 (2005) [4 pages]Emission of Polarization-Entangled Microwave Photons from a Pair of Quantum DotsReceived 23 February 2005; published 12 September 2005 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. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.127401
DOI:
10.1103/PhysRevLett.95.127401
PACS:
78.67.Hc, 42.65.Lm, 78.70.Gq
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