A Generalized Bell Inequality and Decoherence for the K0KO
A Generalized Bell Inequality and Decoherence for the K0KO
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K0KO 的广义贝尔不等式和退相干
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
B. Hiesmayr
中科院分区：
文献类型：
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作者：
B. Hiesmayr
首先，得到了不同时间和不同准自旋态的广义Bell不等式。我们专注于特殊的准自旋本征态和时间。如果使用量子理论重新计算概率，则CP破坏参数[1]破坏了基于局部实在论的不等式。其次，利用退相干方法对量子力学几率进行修正，使初始态能够自发分解。通过这种方式，我们得到了退相干参数λ的下限，它测量退相干的程度。将此结果与从CPLEAR实验[4]的数据推导出的退相干参数λ的实验值[2，3]进行了比较。
First, a generalized Bell inequality for different times and for different quasi-spin states is developed. We focus on special quasi-spin eigenstates and times. The inequality based on a local realistic theory is violated by the CP-violating parameter [1] if the quantum theory is used to recalculate the probabilities. Next, the quantum mechanical probabilities are modified by the decoherence approach, which enables the initial state to factorize spontaneously. In this way we get a lower limit for the decoherence parameter ζ, which measures the degree of decoherence. This result is compared with the experimental value [2, 3] of the decoherence parameter ζ deduced from the data of the CPLEAR experiment [4].