论文标题
信道引起的量子信息在混合状态无QFT中的动力学
Channel induced dynamics of quantum information in mixed state free QFTs
论文作者
论文摘要
我们提出了一个量子场理论（QFT）研究的框架，使我们能够将场激发表示为量子通道。我们展示了两个通用状态的拟议方案的内部工作：一个维QFT系统的正则真空状态和晶格调节的Thermofield双状态，这是两个相同的自由QFT。我们调查了单一和非自然的玻色石高斯通道（包括PETZ恢复图）的行动。为了评估和量化通道静态作用的特征和通道诱导的动力学，我们计算量子熵和保真度。
We propose a framework for Quantum Field Theory (QFT) studies that allows us to represent field excitations as quantum channels. We demonstrate inner-workings of the proposed scheme for two universal states: the regularized vacuum state of a one dimensional QFT system and the lattice-regulated Thermofield Double State of two identical free QFTs. We investigate actions of unitary and non-unitary Bosonic Gaussian channels (including Petz Recovery maps). To evaluate and quantify the character of the channel static action and channel induced dynamics we calculate quantum entropies and fidelities.
