TY - JOUR
T1 - Enhanced solid-state multispin metrology using dynamical decoupling
AU - Pham, L. M.
AU - Bar-Gill, N.
AU - Belthangady, C.
AU - Le Sage, D.
AU - Cappellaro, P.
AU - Lukin, M. D.
AU - Yacoby, A.
AU - Walsworth, R. L.
PY - 2012/7/24
Y1 - 2012/7/24
N2 - We use multipulse dynamical decoupling to increase the coherence lifetime (T 2) 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 T 2 in three diamond samples with widely differing spin impurity environments. In particular, for samples with nitrogen impurity concentration 1 ppm, we extend T 2 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.
AB - We use multipulse dynamical decoupling to increase the coherence lifetime (T 2) 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 T 2 in three diamond samples with widely differing spin impurity environments. In particular, for samples with nitrogen impurity concentration 1 ppm, we extend T 2 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.
UR - https://www.scopus.com/pages/publications/84864634071
U2 - 10.1103/PhysRevB.86.045214
DO - 10.1103/PhysRevB.86.045214
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AN - SCOPUS:84864634071
SN - 1098-0121
VL - 86
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 4
M1 - 045214
ER -