Abstract
We address a recently established relationship, , which engages concurrence () and polarization (). This relationship has revealed a striking connection between two seemingly unrelated measures. Indeed, while quantifies entanglement, which is widely seen as a quantum information resource, quantifies the amount of coherence between optical field components. We discuss the conditions under which and 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.
© 2018 Optical Society of America
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