In view of the fact that the effects of channel noise are inevitable but easily ignored, we come up with two controlled quantum dialogue(CQD) protocols based on logical Brown states, which are against collective-dephasing and collective-rotation noises, respectively. Compared with existing protocols, there exist several outstanding advantages: firstly, Brown states, as the quantum resource, are the maximally entangled five-qubit states, which own stronger entanglement than GHZ states, W states and cluster states; secondly, the specific quantum circuits are designed to explain how two kinds of logical Brown states, to be strongly against collective noise, are constructed in theory; thirdly, the controller can be offline after quantum resource distribution and permission announcement such that his/her waiting time is effectively reduced; and fourthly, the security analysis manifests that our proposed protocols can not only eliminate the information leakage, but also resist against various well-known attacks, especially the dishonest controller’s attacks.

中文翻译：

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容错控制量子对话与逻辑布朗状态对抗集体噪声

鉴于信道噪声的影响不可避免但容易被忽略，我们提出了两种基于逻辑布朗态的受控量子对话（CQD）协议，分别针对集体相移和集体旋转噪声。与现有协议相比，有几个突出的优点：第一，布朗态作为量子资源，是最大纠缠的五量子比特态，比GHZ态、W态和簇态具有更强的纠缠性；其次，设计了具体的量子电路，解释了理论上如何构造两种强烈抵制集体噪声的逻辑布朗态；第三，控制器可以在量子资源分配和权限公告后下线，有效减少他/她的等待时间；