Single spins in diamond for quantum networks and magnetic sensing

M. V. Gurudev Dutt

doi:10.1117/12.856258

3 June 2010 Single spins in diamond for quantum networks and magnetic sensing

M. V. Gurudev Dutt

Proceedings Volume 7730, Optical Data Storage 2010; 773015 (2010) https://doi.org/10.1117/12.856258
Event: Optical Data Storage 2010, 2010, Boulder, Colorado, United States

Abstract

Building scalable quantum information systems is a central challenge facing modern science. Single spins in diamond are a promising platform for distributed quantum information networks and precision measurements. I will discuss recent progress in this field demonstrating coherent operations with coupled electron-nuclear spin quantum registers and nanoscale precision magnetometry. Our experiments demonstrate addressing, preparation, and coherent control of individual nuclear spin qubits in the diamond lattice at room temperature. We have measured spin coherence times exceeding milliseconds, and observed coherent coupling to nearby electronic and nuclear spins. Robust initialization of a two-qubit register and transfer of arbitrary quantum states between electron and nuclear spin qubits has been achieved. Our results show that coherent operations are possible with individual solid-state qubits whose coherence properties approach those for isolated atoms and ions. The resulting electron-nuclear few-qubit registers can potentially serve as small processor nodes in a quantum network where the electron spins are coupled by optical photons.

Citation Download Citation

M. V. Gurudev Dutt "Single spins in diamond for quantum networks and magnetic sensing", Proc. SPIE 7730, Optical Data Storage 2010, 773015 (3 June 2010); https://doi.org/10.1117/12.856258

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