Quantum optical interface for gate-controlled spintronic devices

Details Quantum optical interface for gate-controlled spintronic devices Quantum optical interface for gate-controlled spintronic devices

2006-12-29

arxiv.org/abs/cond-mat/0612700v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 2 figures

Scientific paper

We describe an opto-electronic structure in which charge and spin degrees of freedom in electrical gate-defined quantum dots can be coherently coupled to light. This is achieved via electron-electron interaction or via electron tunneling into a proximal self-assembled quantum dot. We illustrate potential applications of this approach by considering several quantum control techniques, including optical read-out of gate-controlled semiconductor quantum bits and controlled generation of entangled photon-spin pairs.

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