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Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 15: Quanteneffekte: Verschränkung und Dekohärenz 1

Q 15.1: Vortrag

Montag, 12. März 2012, 16:30–16:45, V7.01

Entangling NV center in single nanodiamonds by means of vibrational coupling — •Andreas Albrecht1, Alex Retzker1, Fedor Jelezko2, and Martin B Plenio11Institut für Theoretische Physik, Universität Ulm, D-89069 Ulm — 2Institut für Quantenoptik, Universität Ulm, D-89069 Ulm

A theoretical proposal about how different NV centers within a single nanodiamond can be manipulated by controlled gate operations is presented. This scheme exploits the coupling to a common vibrational mode. The differences in the electron phonon coupling among different energy levels of the nitrogen vacancy center allow for the addressing of individual vibrational sidebands. An effective Lamb-Dicke coupling parameter is obtained and analyzed dependent on the diamond size. Moreover it will be shown that this coupling provides a basis for performing coherent controlled gate operations and therefore enables the generation of entanglement between different NV centers.

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