Nuclear spin induced collapse and revival shape of Rabi oscillations of a single electron spin in diamond  

作　　者：胡欣 刘东奇 潘新宇 

机构地区：[1]Institute of Physics,Chinese Academy of Sciences [2]School of Physics,Nankai University

出　　处：《Chinese Physics B》2011年第11期499-505,共7页中国物理B（英文版）

基　　金：supported by the National Basic Research Program of China(Grant No.2009CB929103);the National Natural Science Foundation of China(Grant No.10974251)

摘　　要：A collapse and revival shape of Rabi oscillations in an electron spin of a single nitrogen-vacancy centre has been observed in diamond at room temperature. Because of hyperfine interaction between the host ^14N nuclear spin and the nitrogen-vacancy centre electron spin, different orientations of the ^14N nuclear spins lead to a triplet splitting of the transition between ground state （ms = 0） and excited state （ms=1）. The manipulation of the single electron spin of nitrogen-vacancy centre is achieved by using a combination of selective microwave excitation and optical pumping at 532 nm. Microwaves can excite three transitions equally to induce three independent nutations and the shape of Rabi oscillations is a combination of the three nutations.A collapse and revival shape of Rabi oscillations in an electron spin of a single nitrogen-vacancy centre has been observed in diamond at room temperature. Because of hyperfine interaction between the host ^14N nuclear spin and the nitrogen-vacancy centre electron spin, different orientations of the ^14N nuclear spins lead to a triplet splitting of the transition between ground state （ms = 0） and excited state （ms=1）. The manipulation of the single electron spin of nitrogen-vacancy centre is achieved by using a combination of selective microwave excitation and optical pumping at 532 nm. Microwaves can excite three transitions equally to induce three independent nutations and the shape of Rabi oscillations is a combination of the three nutations.

关 键 词：nitrogen-vacancy centre single electron spin Rabi oscillations hyperfine interaction 

分 类 号：O469[理学—凝聚态物理]