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arXiv quant-ph/0611168quant-ph
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量子比特态的量子比特画像和贝尔不等式

Qubit portrait of qudit states and Bell inequalities

V. N. Chernega, V. I. Man'ko

摘要:

提出了一种量子比特的线性映射(qubit portrait)作为量子比特态的一个特征。在量子力学概率表示的框架下,利用量子比特画像方法,讨论了两个量子比特和两个量子比特的贝尔不等式。随机矩阵的半群与量子比特和量子态的层析概率分布相关联。利用随机矩阵半群研究了Bell不等式。讨论了层析概率分布的量子比特映射,为量子态的可分性提供了必要条件。

英文摘要:

A linear map of qudit tomogram onto qubit tomogram (qubit portrait) is proposed as a characteristics of the qudit state. Using the qubit portrait method the Bell inequalities for two qubits and two qutrits are discussed in framework of probability representation of quantum mechanics. Semigroup of stochastic matrices is associated with tomographic probability distributions of qubit and qutrit states. Bell-like inequalities are studied using the semigroup of stochastic matrices. The qudit-qubit map of tomographic probability distributions is discussed as ansatz to provide a necessary condition for separability of quantum states.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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