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arXiv · 0812.0755

Rising time of entanglement between scattering spins

F. Ciccarello·M. Paternostro·G. M. Palma·M. Zarcone
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Abstract

We investigate the time evolution of entanglement in a process where a mobile particle is scattered by static spins. We show that entanglement increases monotonically during a transient and then saturates to a steady-state value. For a quasi-monochromatic mobile particle, the transient time depends only on the group-velocity and width of the incoming wavepacket and is insensitive to the interaction strength and spin-number of the scattering particles. These features do not depend on the interaction model and can be seen in various physical settings.

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F. Ciccarello, M. Paternostro, G. M. Palma, M. Zarcone. 2008-12-03. Rising time of entanglement between scattering spins. https://doi.org/10.1103/physrevb.80.165313

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