Avoiding entanglement sudden death via measurement feedback control in a quantum network
In this paper, we consider a linear quantum network composed of two distantly separated cavities that are connected via a one-way optical field. When one of the cavities is damped and the other undamped, the overall cavity state obtains a large amount of entanglement in its quadratures. This entanglement, however, immediately decays and vanishes in a finite time. That is, entanglement sudden death occurs. We show that the direct measurement feedback method proposed by Wiseman can avoid this...[Show more]
|Collections||ANU Research Publications|
|Source:||Physical Review A: Atomic, Molecular and Optical Physics|
|Yamamoto_Avoiding2008.pdf||536.04 kB||Adobe PDF|
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