2011/04/30 by M. M. Müller, D. M. Reich, M. Murphy +5 · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.84.042315
published as Phys. Rev. A 84, 042315 (2011) · extended version; Phys. Rev. A (2011)
arxiv created 2011/09/15 · arxiv updated 2015/03/18
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.