Quantum Information Technology: Entanglement, Teleportation and Quantum Memory

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The role of entanglement in dynamical evolution
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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