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arXiv · 1911.04614

Probing exciton/exciton interactions with entangled photons: theory

Eric R. Bittner·Hao Li·Andrei Piryatinski·Ajay Ram Srimath Kandada·Carlos Silva
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Abstract

Quantum entangled photons provide a sensitive probe of many-body interactions and offer an unique experimental portal for quantifying many-body correlations in a material system. In this paper, we present a theoretical demonstration of how photon-photon entanglement can be generated via interactions between coupled qubits. Here we develop a model for the scattering of an entangled pair of photons from a molecular dimer. We develop a diagrammatic theory for the scattering matrix and show that one can correlate the von Neumann entropy of the outgoing bi-photon wave function to exciton exchange and repulsion interactions. We conclude by discussing possible experimental scenarios for realizing these ideas.

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Eric R. Bittner, Hao Li, Andrei Piryatinski, Ajay Ram Srimath Kandada, Carlos Silva. 2020-02-19. Probing exciton/exciton interactions with entangled photons: theory. https://doi.org/10.1063/1.5139197

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