Entanglement preservation by continuous distillation
Douglas F. Mundarain, Miguel Orszag · Physical Review A · 2009
We study the two-qubit entanglement preservation for a system in the presence of independent thermal baths. We use a combination of filtering operations and distillation protocols as a series of frequent measurements on the system. It is shown that a small fraction of the total amount of available copies of the system preserves or even improves its initial entanglement during the evolution.