Heralded channel Holevo superadditivity bounds from entanglement monogamy
Heralded channel Holevo superadditivity bounds from entanglement monogamy
复制标题
DOI：
10.1063/1.5011660
复制
发表时间：
2017-03
影响因子：
1.3
通讯作者：
Li Gao;M. Junge;Nicholas Laracuente
中科院分区：
文献类型：
--
作者：
Li Gao;M. Junge;Nicholas Laracuente
我们表明，对于一类特定的量子通道，我们称之为预示的渠道，一夫一妻制的挤压纠缠限制了Holevo容量的超加性。预言通道提供了一种理解与任意其他量子通道组成的量子擦除通道的方法，以及实验量子信息中涉及频繁丢失量子比特或试验失败的常见情况。我们还展示了纠缠一夫一妻制如何适用于量子游戏中的非经典性，我们考虑如何忠实，一夫一妻制的纠缠措施可能会约束其他纠缠依赖量在多方的情况下。
We show that for a particular class of quantum channels, which we call heralded channels, monogamy of squashed entanglement limits the superadditivity of Holevo capacity. Heralded channels provide a means to understand the quantum erasure channel composed with an arbitrary other quantum channel, as well as common situations in experimental quantum information that involve frequent loss of qubits or failure of trials. We also show how entanglement monogamy applies to non-classicality in quantum games, and we consider how faithful, monogamous entanglement measures may bound other entanglement-dependent quantities in many-party scenarios.