Hybrid continuous dynamical decoupling - a photon-phonon doubly dressed spin
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-02-09 |
| Journal | Journal of Optics |
| Authors | Jean Teissier, Arne Barfuss, Patrick Maletinsky |
| Institutions | University of Basel |
| Citations | 18 |
Abstract
Section titled āAbstractāWe study the parametric interaction between a single Nitrogen-Vacancy\nelectronic spin and a diamond mechanical resonator in which the spin is\nembedded. Coupling between spin and oscillator is achieved by crystal strain,\nwhich is generated upon actuation of the oscillator and which parametrically\nmodulates the spinsā energy splitting. Under coherent microwave driving of the\nspin, this parametric drive leads to a locking of the spin Rabi frequency to\nthe oscillator mode in the megahertz range. Both the Rabi oscillation decay\ntime and the inhomogeneous spin dephasing time increase by two orders of\nmagnitude under this spin-locking condition. We present routes to prolong the\ndephasing times even further, potentially to the relaxation time limit. The\nremarkable coherence protection that our hybrid spin-oscillator system offers\nis reminiscent of recently proposed concatenated continuous dynamical\ndecoupling schemes and results from our robust, drift-free strain-coupling\nmechanism and the narrow linewidth of the high-quality diamond mechanical\noscillator employed. Our findings suggest feasible applications in quantum\ninformation processing and sensing.\n