PhD

Quantum coherence and entanglement of single spins in diamond

[29-10-2008]

Diamond has recently emerged as a unique material for quantum information processing. In particular, Nitrogen-Vacancy centers (NV centers) in diamond exhibit quantum behaviour up to room temperature. NV centers naturally emit photons one at a time and can be used as a reliable single-photon source. Moreover, the electronic and nuclear spin states associated with the NV center have extremely long coherence times that allow coherent control of single spins at room temperature with very high fidelity that is unmatched in the solid state. Our research aims at controlling single and coupled spins in diamond and at coupling single spins to single photons in order to establish long-distant entanglement. Besides demonstrating the basic elements of quantum information processing (at room temperature), we are interested in fundamental issues in quantum mechanics related to decoherence and light-matter interaction.

For more information please contact Ronald Hanson r.hanson@tudelft.nl

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