Steady-state nested entanglement structures in harmonic chains with single-site squeezing manipulation
arXiv:1507.02836 · doi:10.1103/PhysRevA.92.032319
Abstract
We show that a squeezed bath, that acts on the central element of a harmonic chain, can drive the whole system to a steady state featuring a series of nested entangled pairs of oscillators that, ideally, covers the whole chain regardless of its size. We study how to realize this effect in various physical implementations, including optomechanical and superconducting devices, using currently available technologies. In these cases no squeezed fields are actually needed, and the squeezed bath is, instead, simulated by quantum reservoir engineering with bichromatic drives.
12 pages, 8 figures
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