Conditional quantum logic using two atomic qubits
arXiv:quant-ph/0206007 · doi:10.1103/PhysRevA.66.062306
Abstract
In this paper we propose and analyze a feasible scheme where the detection of a single scattered photon from two trapped atoms or ions performs a conditional unitary operation on two qubits. As examples we consider the preparation of all four Bell states, the reverse operation that is a Bell measurement, and a CNOT gate. We study the effect of atomic motion and multiple scattering, by evaluating Bell inequalities violations, and by calculating the CNOT gate fidelity.
23 pages, 8 figures in 11 files
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