Physics – Quantum Physics
Scientific paper
2011-04-12
Phys. Rev. A 84, 042315 (2011)
Physics
Quantum Physics
extended version; Phys. Rev. A (2011)
Scientific paper
10.1103/PhysRevA.84.042315
Optimal control theory is a versatile tool that presents a route to significantly improving figures of merit for quantum information tasks. We combine it here with the geometric theory for local equivalence classes of two-qubit operations to derive an optimization algorithm that determines the best entangling two-qubit gate for a given physical setting. We demonstrate the power of this approach for trapped polar molecules and neutral atoms.
Calarco Tommaso
Koch Christiane P.
Müller Marcus
Murphy Michael
Reich D. M.
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