Regensburg 2007 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 8: Quantum dynamics, decoherence and quantum information

DY 8.3: Vortrag

Montag, 26. März 2007, 16:45–17:00, H2

Room Temperature Coherence Transfer between a Single Electron and Nuclear Spin in Diamond — •Philipp Neumann, Torsten Gaebel, Fedor Jelezko, and Jörg Wrachtrup — 3. Physikalisches Institut, Universität Stuttgart, Germany

Coherent control of single spins is one basic requirement for quantum information technology. For the processing of qubit information the coupling to at least one other spin is necessary. Especially when it comes to storage of quantum information the coherence of one spin has to be transferred to another very long lived spin system. Promising candidates for this are nuclear spin states. We demonstrate recent progress on the coherence transfer between the electron spin of a single NV center in diamond and its ¹⁵ N nuclear spin at room temperature. For this we present a novel method to initialize the nuclear spin and by this cool it down from room temperature to µ K. In addition its long lasting coherent evolution will be shown.