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arXiv 0909.2746quant-ph
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量子态和双模光态的概率表示和量子性检验

Probability representation and quantumness tests for qudits and two-mode light states

S. N. Filippov, V. I. Man'ko

摘要:

利用自旋态的层析概率表示,研究了量子点的量子行为。对于一般的j-量子态,我们给出了一个量子态的显式公式,其负平均值与经典统计模型不相容。量子和经典(2 j +1)能级系统的概率表示的量子性测试的框架内进行比较。通过引入Jordan-Schwinger映射,将该方法推广到检验双模光态的量子性。

英文摘要:

Using tomographic-probability representation of spin states, quantum behavior of qudits is examined. For a general j-qudit state we propose an explicit formula of quantumness witnetness whose negative average value is incompatible with classical statistical model. Probability representations of quantum and classical (2j+1)-level systems are compared within the framework of quantumness tests. Trough employing Jordan-Schwinger map the method is extended to check quantumness of two-mode light 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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