Tommaso Caneva, Michael Murphy, Tommaso Calarco, Rosario Fazio, Simone Montangero, Vittorio Giovannetti, Giuseppe E. Santoro
Published 2009-02-24, updated 2009-12-09Version 2
Optimal control theory is a promising candidate for a drastic improvement of the performance of quantum information tasks. We explore its ultimate limit in paradigmatic cases, and demonstrate that it coincides with the maximum speed limit allowed by quantum evolution (the quantum speed limit).
Comments: 4 pages, 4 figures; v2: references added, published version
Journal: Phys. Rev. Lett. 103, 240501 (2009)
Optimal Control Theory for Continuous Variable Quantum Gates
Quantum evolution in disordered transport
Optimal control theory for unitary transformations
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