Transient entanglement in a spin chain stimulated by phase pulses

Details Transient entanglement in a spin chain stimulated by phase pulses Transient entanglement in a spin chain stimulated by phase pulses

2010-08-16

arxiv.org/abs/1008.2784v1

Physics

Quantum Physics

4 pages 2 figures

Scientific paper

Dynamics of the one-dimensional open Ising chain under influence of $\pi$ -pulses is studied. It is shown that the application of a specific sequence of such instant kicks to selective spins stimulates arising of perfect dynamical pairwise entanglement between ends of the spin chain. Analytic formulas for the concurrence dynamics are derived. It is also shown that the time required to perfectly entangle the ends of the chains grows linearly with the number of spins in the chain. The final entangled state of the ending spins is always the same and does not depend on length the chain.

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