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Sudden death of distillability in qutrit-qutrit systems

2009/04/30 by Wei Song, Lin Chen, Shi-Liang Zhu · 45 citations
Computer Science · Physics and Astronomy · #Computer science #Dephasing #Noise (video) #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum decoherence #Quantum entanglement #Quantum mechanics #Quantum nonlocality #Qutrit #Statistical physics #Sudden death #quant-ph

paper · pdf · doi:10.1103/physreva.80.012331

published in Physical Review A 80(1) (American Physical Society) · published version, small changes in Sec.III, 6 pages, 3 figures

openalex publication_date 2009/07/31 · arxiv created 2009/08/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We introduce the concept of distillability sudden death, i.e., free entangled states can evolve into nondistillable (bound entangled or separable) states in finite time under local noise. We describe the phenomenon through a specific model of local dephasing noise and compare the behavior of states in terms of the Bures fidelity. Then we propose a few methods to avoid distillability sudden death of states under (general) local dephasing noise so that free entangled states can be robust against decoherence. Moreover, we find that bound entangled states are unstable in the limit of infinite time.

Citations