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V. Giovannetti, S. Lloyd, and L. Maccone
Europhys.
Lett. 62, 615 (2003).
Abstract
Entanglement or
entanglement-generating interactions permit to achieve the maximum
allowed speed in the dynamical evolution of a composite system, when
the energy resources are distributed among subsystems. The cases of
pre-existing entanglement and of entanglement-building interactions
are separately addressed. The role of classical correlations is also
discussed.
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