N−Qubit W State of Spatially Separated Atoms via Fractional Adiabatic Passage
ZHENG An-Shou1,2**, LIU Ji-Bing3, CHEN Hong-Yun2
1School of Physics and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074 2School of Mathematics and Physics, China University of Geosciences, Wuhan 430074 3Hubei Key Laboratory of Pollutant Analysis and Reuse Technology and Department of Physics, Hubei Normal University, Huangshi 435002
N−Qubit W State of Spatially Separated Atoms via Fractional Adiabatic Passage
ZHENG An-Shou1,2**, LIU Ji-Bing3, CHEN Hong-Yun2
1School of Physics and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074 2School of Mathematics and Physics, China University of Geosciences, Wuhan 430074 3Hubei Key Laboratory of Pollutant Analysis and Reuse Technology and Department of Physics, Hubei Normal University, Huangshi 435002
摘要An alternative scheme is presented to realize an N−qubit W state with distant atoms trapped in spatially separated optical cavities coupled by optical fibers via a fractional adiabatic passage. The present scheme is tolerant to device parameter nonuniformity and does not need to accurately control the experimental time by employing the fractional stimulated Raman adiabatic passage. In addition, the excited states of atoms are adiabatically eliminated and no additional qubit is required. Cavity decay, fiber losses and atomic spontaneous emission can all be greatly suppressed in the present scheme.
Abstract：An alternative scheme is presented to realize an N−qubit W state with distant atoms trapped in spatially separated optical cavities coupled by optical fibers via a fractional adiabatic passage. The present scheme is tolerant to device parameter nonuniformity and does not need to accurately control the experimental time by employing the fractional stimulated Raman adiabatic passage. In addition, the excited states of atoms are adiabatically eliminated and no additional qubit is required. Cavity decay, fiber losses and atomic spontaneous emission can all be greatly suppressed in the present scheme.
ZHENG An-Shou;**;LIU Ji-Bing;CHEN Hong-Yun
. N−Qubit W State of Spatially Separated Atoms via Fractional Adiabatic Passage[J]. 中国物理快报, 2011, 28(8): 80303-080303.
ZHENG An-Shou, **, LIU Ji-Bing, CHEN Hong-Yun
. N−Qubit W State of Spatially Separated Atoms via Fractional Adiabatic Passage. Chin. Phys. Lett., 2011, 28(8): 80303-080303.
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