Entanglement magnification induced by local manipulations

Abstract

We study the entanglement capability of the evolution of a pair of qubits evolving under unitary dynamics, when the local dynamical parameters cannot be modified during the time-evolution. Unlike the fast local control regime, we find that local and non-local contributions to the dynamics are strictly interconnected. Moreover, it is possible to strongly increase the entanglement capability by suitably initializing the characteristic energies of the two parties.

4 pages

References in corpus (2)

• Indirect control with quantum accessor (I): coherent control of multi-level system via qubit chain
• Resonant purification of mixed states for closed and open quantum systems

Cited by in corpus (1)

• Bipartite entanglement and control in multiqubit systems