Format

Send to

Choose Destination
Phys Rev Lett. 2011 Aug 5;107(6):060502. Epub 2011 Aug 3.

Cavity QED with magnetically coupled collective spin states.

Author information

1
Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Austria.

Abstract

We report strong coupling between an ensemble of nitrogen-vacancy center electron spins in diamond and a superconducting microwave coplanar waveguide resonator. The characteristic scaling of the collective coupling strength with the square root of the number of emitters is observed directly. Additionally, we measure hyperfine coupling to (13)C nuclear spins, which is a first step towards a nuclear ensemble quantum memory. Using the dispersive shift of the cavity resonance frequency, we measure the relaxation time of the NV center at millikelvin temperatures in a nondestructive way.

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center