Projective measurement of a single nuclear spin qubit by using two-mode cavity QED

Details 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

2010-12-08

arxiv.org/abs/1012.1724v1

Phys.Rev.Lett.106:160501,2011

Physics

Quantum Physics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.106.160501

We report the implementation of projective measurement on a single 1/2 nuclear spin of the 171Yb 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 171Yb. This system can associate the nuclear spin degrees of freedom with the polarization of photons, which will facilitate the development of hybrid quantum systems.

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