Preventing Multipartite Disentanglement by Local Modulations
Goren Gordon, Gershon Kurizki · Physical Review Letters · 2006
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 allowing the existence of decoherence-free multipartite entangled systems.