Scattering theory of frequency-entangled biphoton states facilitated by cavity polaritons

Fuente: arXiv
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Main Authors: Piryatinski, Andrei, Jacobus, Nishaant, Dambal, Sameer, Bittner, Eric R., Zhang, Yu, Kandada, Ajay Ram Srimath
Format: Preprint
Published: 2025
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author Piryatinski, Andrei
Jacobus, Nishaant
Dambal, Sameer
Bittner, Eric R.
Zhang, Yu
Kandada, Ajay Ram Srimath
author_facet Piryatinski, Andrei
Jacobus, Nishaant
Dambal, Sameer
Bittner, Eric R.
Zhang, Yu
Kandada, Ajay Ram Srimath
contents The use of quantum light to probe exciton properties in semiconductor and molecular nanostructures typically occurs in the low-intensity regime. A substantial enhancement of exciton-photon coupling can be achieved with photonic cavities, where excitons hybridize with cavity modes to form polariton states. To provide a theoretical framework for interpreting emerging experimental efforts in this direction, we develop a scattering theory describing the interaction of frequency-entangled photon pairs with cavity polariton and bipolariton states under various coupling regimes. Employing the Tavis-Cummings model in combination with our scattering approach, we present a quantitative analysis of how the interaction of the entangled photon pair with the polariton/bipolariton modifies its joint spectral amplitude (JSA). Specifically, we examine the effects of the cavity-mode steady-state population, exciton-cavity coupling strength, and different forms of the input photon JSA. Our results show that the entanglement entropy of the scattered photons is highly sensitive to the interplay between the input JSA and the spectral line shapes of the polariton resonances, emphasizing the cavity filtering effects. We suggest that biphoton scattering quantum light spectroscopy best serves as a sensitive probe of polariton and bipolariton states in the photon-vacuum cavity state. Our approach is not only robust to various regimes of cavity-exciton coupling, but also amenable to extensions beyond the Tavis-Cummings model, enabling the representation of a broad class of molecular systems and solid state quantum materials.
format Preprint
id arxiv_https___arxiv_org_abs_2510_16358
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Scattering theory of frequency-entangled biphoton states facilitated by cavity polaritons
Piryatinski, Andrei
Jacobus, Nishaant
Dambal, Sameer
Bittner, Eric R.
Zhang, Yu
Kandada, Ajay Ram Srimath
Quantum Physics
Optics
The use of quantum light to probe exciton properties in semiconductor and molecular nanostructures typically occurs in the low-intensity regime. A substantial enhancement of exciton-photon coupling can be achieved with photonic cavities, where excitons hybridize with cavity modes to form polariton states. To provide a theoretical framework for interpreting emerging experimental efforts in this direction, we develop a scattering theory describing the interaction of frequency-entangled photon pairs with cavity polariton and bipolariton states under various coupling regimes. Employing the Tavis-Cummings model in combination with our scattering approach, we present a quantitative analysis of how the interaction of the entangled photon pair with the polariton/bipolariton modifies its joint spectral amplitude (JSA). Specifically, we examine the effects of the cavity-mode steady-state population, exciton-cavity coupling strength, and different forms of the input photon JSA. Our results show that the entanglement entropy of the scattered photons is highly sensitive to the interplay between the input JSA and the spectral line shapes of the polariton resonances, emphasizing the cavity filtering effects. We suggest that biphoton scattering quantum light spectroscopy best serves as a sensitive probe of polariton and bipolariton states in the photon-vacuum cavity state. Our approach is not only robust to various regimes of cavity-exciton coupling, but also amenable to extensions beyond the Tavis-Cummings model, enabling the representation of a broad class of molecular systems and solid state quantum materials.
title Scattering theory of frequency-entangled biphoton states facilitated by cavity polaritons
topic Quantum Physics
Optics
url https://arxiv.org/abs/2510.16358