Correlations in orbital angular momentum of spatially entangled paired photons generated in parametric downconversion
Clara I. Osorio, Gabriel Molina-Terriza, Juan P. Torres
TL;DR
This paper investigates the orbital angular momentum correlations in spatially entangled photon pairs generated via spontaneous parametric down-conversion, providing a comprehensive explanation for previously conflicting experimental and theoretical results.
Contribution
It offers a dual perspective on the correlations, clarifying contradictions in earlier findings and theoretical models.
Findings
Clarifies the nature of OAM correlations in entangled photons
Reconciles conflicting experimental results
Provides a theoretical framework for understanding OAM entanglement
Abstract
What are the orbital angular momentum correlations between spatially entangled photon pairs generated in spontaneous parametric down-conversion? We show that the answer to this question can be given in two alternative, although complementary, ways. The answer posed in this letter explains satisfactorily the seemingly contradictory results obtained in different experiments, and theoretical approaches.
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