Quantum logic gates using Stark shifted Raman transitions in a cavity

Details Quantum logic gates using Stark shifted Raman transitions in a cavity Quantum logic gates using Stark shifted Raman transitions in a cavity

2004-01-19

arxiv.org/abs/quant-ph/0401099v3

Phys. Rev. A 69, 062306 (2004).

Physics

Quantum Physics

5 pages, 1 figure, RevTeX4, Text is modified

Scientific paper

10.1103/PhysRevA.69.062306

We present a scheme to realise the basic two-quibit logic gates such as quantum phase gate and controlle-NOT gate using a detuned optical cavity interacting with a three-level Raman system. We discuss the role of Stark shifts which are as important as the terms leading to two-photon transition. The operation of the proposed logic gates involves metastable states of the atom and hence is not affected by spontaneous emission. These ideas can be extended to produce multiparticle entanglement.

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