title: Optimal control at the quantum speed limit.
abstract: 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.
authors.affiliation: International School for Advanced Studies (SISSA), Via Beirut 2-4, I-34014 Trieste, Italy.
authors.forename: T
authors.initials: T
authors.lastname: Caneva
authors.forename: M
authors.initials: M
authors.lastname: Murphy
authors.forename: T
authors.initials: T
authors.lastname: Calarco
authors.forename: R
authors.initials: R
authors.lastname: Fazio
authors.forename: S
authors.initials: S
authors.lastname: Montangero
authors.forename: V
authors.initials: V
authors.lastname: Giovannetti
authors.forename: G E
authors.initials: GE
authors.lastname: Santoro