Optimizing a dynamical decoupling protocol for solid-state electronic spin ensembles in diamond

DSpace/Manakin Repository

Optimizing a dynamical decoupling protocol for solid-state electronic spin ensembles in diamond

Citable link to this page

 

 
Title: Optimizing a dynamical decoupling protocol for solid-state electronic spin ensembles in diamond
Author: Farfurnik, D.; Jarmola, A.; Pham, L. M.; Wang, Z. H.; Dobrovitski, V. V.; Walsworth, Ronald Lee; Budker, D.; Bar-Gill, N.

Note: Order does not necessarily reflect citation order of authors.

Citation: Farfurnik, D., A. Jarmola, L. M. Pham, Z. H. Wang, V. V. Dobrovitski, R. L. Walsworth, D. Budker, and N. Bar-Gill. 2015. “Optimizing a Dynamical Decoupling Protocol for Solid-State Electronic Spin Ensembles in Diamond.” Physical Review B 92 (6) (August). doi:10.1103/physrevb.92.060301.
Full Text & Related Files:
Abstract: We demonstrate significant improvements of the spin coherence time of a dense ensemble of nitrogen-vacancy (NV) centers in diamond through optimized dynamical decoupling (DD). Cooling the sample down to 77 K suppresses longitudinal spin relaxation T1 effects and DD microwave pulses are used to increase the transverse coherence time T2 from ∼0.7ms up to ∼30ms. We extend previous work of single-axis (Carr-Purcell-Meiboom-Gill) DD towards the preservation of arbitrary spin states. Following a theoretical and experimental characterization of pulse and detuning errors, we compare the performance of various DD protocols. We identify that the optimal control scheme for preserving an arbitrary spin state is a recursive protocol, the concatenated version of the XY8 pulse sequence. The improved spin coherence might have an immediate impact on improvements of the sensitivities of ac magnetometry. Moreover, the protocol can be used on denser diamond samples to increase coherence times up to NV-NV interaction time scales, a major step towards the creation of quantum collective NV spin states.
Published Version: doi:10.1103/PhysRevB.92.060301
Other Sources: http://arxiv.org/abs/1505.00636
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:27722644
Downloads of this work:

Show full Dublin Core record

This item appears in the following Collection(s)

 
 

Search DASH


Advanced Search
 
 

Submitters