论文标题
量子相干性的近似蒸馏
Approximate distillation of quantum coherence
论文作者
论文摘要
连贯蒸馏是一致性的资源理论中的基本信息理论任务。在本文中，我们在严格不一致的操作下开发了近似相干蒸馏的框架。该协议认为我们无法确定的情况下我们无法将初始状态$ρ$转换为目标状态$ψ$；取而代之的是，我们的目标是确定性地将初始状态$ρ$转换为中间状态$ ϕ $，该$与目标状态$ψ$最近似。我们还提出了近似相干蒸馏的明确转换策略。
Coherence distillation is a basic information-theoretic task in the resource theory of coherence. In this paper, we develop the framework of the approximate coherence distillation under strictly incoherent operations. This protocol considers the situation that we cannot transform an initial state $ρ$ into a target state $ψ$ with certainty; instead, we aim to deterministically transform the initial state $ρ$ into an intermediate state $ϕ$ that is most approximate to the target state $ψ$ in terms of fidelity. We also present the explicit conversion strategy of the approximate coherence distillation.
