Preventing Multipartite Disentanglement by Local Modulations

Details Preventing Multipartite Disentanglement by Local Modulations Preventing Multipartite Disentanglement by Local Modulations

2006-08-23

arxiv.org/abs/quant-ph/0608174v1

Physics

Quantum Physics

5 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.97.110503

An entangled multipartite system coupled to a zero-temperature bath undergoes rapid disentanglement in many realistic scenarios, due to local, symmetry-breaking, differences in the particle-bath couplings. We show that locally controlled perturbations, addressing each particle individually, can impose a symmetry, and thus allow the existence of decoherence-free multipartite entangled systems in zero-temperature environments.

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