Optimizing entangling quantum gates for physical systems

Details Optimizing entangling quantum gates for physical systems Optimizing entangling quantum gates for physical systems

2011-04-12

arxiv.org/abs/1104.2337v2

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.

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