标题： 高斯量子数据隐藏 显示英文标题

标题： Gaussian quantum data hiding

摘要： 量子数据隐藏将一个隐藏的经典位编码到一对难以通过特定测量集区分的量子态中，该测量集表示为$M$。 在本工作中，我们探讨了涉及高斯操作或状态的两种量子数据隐藏情境。 首先，我们将测量集$M$视为高斯局部量子操作和经典通信，这是一种文献中此前未用于数据隐藏的新操作集。 我们在两个不同的位移双模压缩态混合态中隐藏了一个经典位。 其次，我们将测量集$M$视为一般的高斯测量，并使用双模热态构造数据隐藏态。 这种数据隐藏方案在弱强度极限下有效，与现有针对一般高斯测量集的讨论相比提供了一个新例子。 显示英文摘要

摘要： Quantum data hiding encodes a hidden classical bit to a pair of quantum states that is difficult to distinguish using a particular set of measurement, denoted as $M$. In this work, we explore quantum data hiding in two contexts involving Gaussian operations or states. First, we consider the set of measurement $M$ as Gaussian local quantum operations and classical communication, a new set of operations not previously discussed in the literature for data hiding. We hide one classical bit in the two different mixture of displaced two-mode squeezed states. Second, we consider the set of measurement $M$ as general Gaussian measurement and construct the data hiding states using two-mode thermal states. This data hiding scheme is effective in the weak strength limit, providing a new example compared to existing discussions for the set of general Gaussian measurement.