Projective measurement of a single nuclear spin qubit by using two-mode cavity QED.
Projective measurement of a single nuclear spin qubit by using two-mode cavity QED.
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DOI：
10.1103/physrevlett.106.160501
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发表时间：
2010-12
影响因子：
8.6
通讯作者：
Y. Eto;A. Noguchi;Peng Zhang;Masahito Ueda;M. Kozuma
中科院分区：
文献类型：
--
作者：
Y. Eto;A. Noguchi;Peng Zhang;Masahito Ueda;M. Kozuma
本文报道了通过测量腔增强荧光的偏振态实现对Yb原子（171）核1/2自旋的投影测量。为了获得具有核自旋相关偏振的腔增强荧光，我们构建了一个双模腔QED系统，其中两个循环跃迁独立地耦合到每个正交偏振的腔模，通过操纵（171）Yb的能级。该系统可以将原子核自旋自由度与光子的偏振态联系起来，这将有助于混合量子系统的发展。
We report the implementation of projective measurement on a single 1/2 nuclear spin of the (171)Yb atom by measuring the polarization of cavity-enhanced fluorescence. To obtain cavity-enhanced fluorescence having a nuclear-spin-dependent polarization, we construct a two-mode cavity QED system, in which two cyclic transitions are independently coupled to each of the orthogonally polarized cavity modes, by manipulating the energy level of (171)Yb. This system can associate the nuclear spin degrees of freedom with the polarization of photons, which will facilitate the development of hybrid quantum systems.