Distillation of Bell states in open systems
E. Isasi, D. Mundarain
TL;DR
This paper reviews the classification of 2x2 distillable states and introduces a protocol capable of distilling Bell states with non-zero probability in open systems, effectively recovering entanglement in thermal environments.
Contribution
It presents a novel distillation protocol applicable in open quantum systems, enhancing entanglement recovery in thermal baths.
Findings
Protocol enables Bell state distillation at any time from an initial singlet in vacuum.
Significant entanglement recovery in non-zero thermal baths.
Complete classification of 2x2 distillable states for finite-copy protocols.
Abstract
In this work we review the entire classification of 2x2 distillable states for protocols with a finite numbers of copies. We show a distillation protocol that allows to distill Bell states with non zero probability at any time for an initial singlet in vacuum. It is shown that the same protocol used in non zero thermal baths yields a considerable recovering of entanglement.
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