Opt Lett. 2018 Jun 1;43(11):2603-2606. doi: 10.1364/OL.43.002603.
We address a recently established relationship, C+P=1, which engages concurrence (C) and polarization (P). This relationship has revealed a striking connection between two seemingly unrelated measures. Indeed, while C quantifies entanglement, which is widely seen as a quantum information resource, P quantifies the amount of coherence between optical field components. We discuss the conditions under which C and P may be related to one another and show how the optical approach discloses entanglement as a resource that may be found in both the quantum and the classical domain. This is confirmed by a proposed Bell violation that can be exhibited using either quantum or classical light.
我们研究了最近确立的关系 C+P=1，它涉及并协（C）和偏极（P）。这个关系揭示了两个看似无关的测量之间惊人的联系。实际上，虽然 C 量化了纠缠，它被广泛视为量子信息资源，但 P 量化了光场分量之间的相干度。我们讨论了 C 和 P 可能相关的条件，并展示了光学方法如何揭示纠缠作为一种资源，它可以存在于量子和经典领域。这一点得到了一个拟议的贝尔违背的证实，它可以使用量子或经典光来展示。
