Entanglement and decoherence are two intimately related phenomena that lie at the heart of quantum information. The EPR-Bell states are the most basic quantum systems, which form the complete entangled basis of the two-particle Hilbert space, and which are important in many quantum computation schemes. The bit flip, phase flip, and bit-phase flip noise channels represent all the possible errors in quantum computation. Thus, the quantum decoherence characteristic of maximally and partially Bell entangled states under different noisy channels is studied using the concurrence. Our work is useful for linear-optical quantum computation and quantum communication schemes whose building blocks are entangled state.

中文翻译：

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不同噪声通道下光子钟形态的纠缠动力学

纠缠和退相干是两个密切相关的现象，它们是量子信息的核心。EPR-贝尔状态是最基本的量子系统，它构成了两粒子希尔伯特空间的完整纠缠基础，并且在许多量子计算方案中都很重要。翻转位，相位翻转和位相翻转噪声通道代表了量子计算中所有可能的错误。因此，利用并发性研究了在不同噪声信道下最大和部分贝尔纠缠态的量子退相干特性。我们的工作对于构建块为纠缠态的线性光学量子计算和量子通信方案很有用。