金刚石¹³C核子定位用参数可调动态解耦序列

A symmetric non-equally spaced protocol named adjustable-parameter dynamical decoupling (APDD) was proposed to individually map ¹³C nuclear spin in diamond. The principles of the APDD sequence are in detail numerically calculated and simulation analyzed. The ¹³C nuclear spin addressing accuracy of APDD protocol was compared with Carr-Purcell-Meiboom-Gill (CPMG) and XY4 protocol, which are most widely used in diamond atom quantum manipulation. Results show that the ¹³C nuclear spin addressing accuracy of APDD protocol was 6.27 times higher than CPMG and XY4 sequences. Furthermore, τ₁/τ ratio ranging from 0.51 to 0.58 is the best operating condition for APDD protocol. The APDD protocol will pave the way towards manipulation of the nuclear spins surrounding the NV^- color center in diamond, which has significant applications in quantum information and quantum detector.