Entangled microwave photons from quantum dots

Details Entangled microwave photons from quantum dots Entangled microwave photons from quantum dots

2005-02-23

arxiv.org/abs/cond-mat/0502550v2

Phys. Rev. Lett. 95, 127401 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.95.127401

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.

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