Single Spins in Diamond for Quantum Networks and Magnetic Sensing

Date: 
Monday, March 9, 2009 (All day)
Speaker: 
Gurudev Dutt

I will discuss experiments that demonstrate addressing, preparation, and coherent control of coupled electronic and nuclear spin qubits in the diamond lattice at room temperature [1,2]. 
Our results show that coherent operations are possible with 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 to generate entanglement, and the nuclear spins serve as a resource for quantum memory and quantum logic operations.
Future prospects along these directions as well as potential applications of diamond in nanoscale precision magnetometry [3] and magnetic imaging will be discussed.

[1] L. Childress et al, Science  314, 281 (2006)
[2] M. V. Gurudev Dutt et al, Science 316, 1312 (2007). 
[3] J. Maze et al, Nature 455, 644 (2008)