Enhanced solid-state multispin metrology using dynamical decoupling

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Enhanced solid-state multispin metrology using dynamical decoupling

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Title: Enhanced solid-state multispin metrology using dynamical decoupling
Author: Pham, Linh My; Bar-Gill, N.; Belthangady, Chinmay N.; LeSage, David Anthony; Cappellaro, P.; Lukin, Mikhail D.; Yacoby, Amir; Walsworth, Ronald L.

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

Citation: Pham, L. M., N. Bar-Gill, C. Belthangady, D. Le Sage, P. Cappellaro, M. D. Lukin, A. Yacoby, and R. L. Walsworth. 2012. “Enhanced Solid-State Multispin Metrology Using Dynamical Decoupling.” Phys. Rev. B 86 (4) (July): 045214.
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Abstract: We use multipulse dynamical decoupling to increase the coherence lifetime (T2) of large numbers of nitrogen-vacancy (NV) electronic spins in room temperature diamond, thus enabling scalable applications of multispin quantum information processing and metrology. We realize an order-of-magnitude extension of the NV multispin T2 in three diamond samples with widely differing spin impurity environments. In particular, for samples with nitrogen impurity concentration ≲1 ppm, we extend T2 to >2 ms, comparable to the longest coherence time reported for single NV centers, and demonstrate a tenfold enhancement in NV multispin sensing of ac magnetic fields.
Published Version: doi:10.1103/physrevb.86.045214
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:11870339
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