Hidden coherences and two-state systems
Hidden coherences and two-state systems
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隐藏的相干性和两国系统
DOI：
10.1364/optica.5.000243
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
F. D. Zela
中科院分区：
文献类型：
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作者：
F. D. Zela
根据玻尔的互补原理，光既不是波，也不是粒子，而是两者兼而有之。玻尔的互补原理最初是为了定性地描述量子现象而设计的。后来，通过不等式（如V2+D2≤1）实现了量化，这涉及可见性V和可识别性D。最近，等式V2+D2=P2-偏振相干定理（PCT）-被建立，将偏振P和解决量子和经典相干。这表明玻尔的互补性并不局限于量子现象。我们推导出PCT的一个扩展，它也适用于量子和经典光场，这些光场携带交织的、二分的可观测量，如偏振和双路选择。我们讨论了如何限制关键取决于所选择的测量策略。这可能会促使各种实验表现出互补的功能，可能潜伏在隐藏的连贯性。
Light is neither wave nor particle, but both, according to Bohr’s complementarity principle, which was first devised to qualitatively characterize quantum phenomena. Later, quantification was achieved through inequalities such as V2+D2≤1, which engage visibility V and distinguishability D. Recently, equality V2+D2=P2—the polarization coherence theorem (PCT)—was established, incorporating polarization P and addressing both quantum and classical coherences. This shows that Bohr’s complementarity is not restricted to quantum phenomena. We derive an extension of the PCT that also applies to quantum and classical light fields carrying intertwined, dichotomic observables, such as polarization and two-path alternative. We discuss how constraints critically depend on the chosen measurement strategy. This may prompt various experiments to exhibit complementary features that possibly lurk behind hidden coherences.