Robust scheme for implemention of quantum phase gates for two atoms |
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| Authors: | Zheng Shi-Biao |
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| Affiliation: | Department of Physics, Fuzhou University, Fuzhou \rm 350002, China |
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| Abstract: | We propose a scheme for implementing conditional quantum phase gates
for two four-state atoms trapped in a cavity. The two ground states
of the atoms are coupled through two Raman processes induced by the
cavity mode and two classical fields. Under certain conditions
nonresonant Raman processes lead to two-atom coupling and can
be used to produce conditional phase gates. The scheme is
insensitive to cavity decay, thermal photons, and atomic
spontaneous emission. The scheme does not require individual
addressing of the atoms. |
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| Keywords: | quantum phase gates Raman
process two-atom coupling |
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