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arXiv · 0810.4488

A quantum interface between light and nuclear spins in quantum dots

Heike Schwager·J. Ignacio Cirac·Géza Giedke
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Abstract

The coherent coupling of flying photonic qubits to stationary matter-based qubits is an essential building block for quantum communication networks. We show how such a quantum interface can be realized between a traveling-wave optical field and the polarized nuclear spins in a singly charged quantum dot strongly coupled to a high-finesse optical cavity. By adiabatically eliminating the electron a direct effective coupling is achieved. Depending on the laser field applied, interactions that enable either write-in or read-out are obtained.

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Heike Schwager, J. Ignacio Cirac, Géza Giedke. 2010-01-18. A quantum interface between light and nuclear spins in quantum dots. https://doi.org/10.1103/physrevb.81.045309

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