Controlling Rydberg atom-polariton interactions: from exceptional points to fast readout

Fuente: arXiv
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Autores principales: Šumarac, Tamara, Qiu, Emily H., Tsesses, Shai, Niu, Peiran, Menssen, Adrian J., Xu, Wenchao, Walther, Valentin, Delić, Uroš, Choi, Soonwon, Lukin, Mikhail D., Vuletić, Vladan
Formato: Preprint
Publicado: 2026
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author Šumarac, Tamara
Qiu, Emily H.
Tsesses, Shai
Niu, Peiran
Menssen, Adrian J.
Xu, Wenchao
Walther, Valentin
Delić, Uroš
Choi, Soonwon
Lukin, Mikhail D.
Vuletić, Vladan
author_facet Šumarac, Tamara
Qiu, Emily H.
Tsesses, Shai
Niu, Peiran
Menssen, Adrian J.
Xu, Wenchao
Walther, Valentin
Delić, Uroš
Choi, Soonwon
Lukin, Mikhail D.
Vuletić, Vladan
contents Rydberg atoms represent a platform underpinning many recent developments in quantum computation, simulation, sensing, and metrology. They further facilitate optical nonlinearity at the single-photon level when coupled to photons propagating in atomic clouds, which form collective atomic excitations called Rydberg polaritons, strongly interacting with each other. Here, we experimentally explore interactions between a Rydberg polariton in an atomic ensemble and a single, adjacent, Rydberg atom. We discover three different regimes of quantum dynamics corresponding to polariton blockade, coherent exchange, and probabilistic hopping, which are defined by their distinct transmission characteristics, with a transition through an exceptional point occurring between blockade and coherent exchange. We investigate the applications of such interactions for fast, non-destructive detection of Rydberg atoms and present proof-of-principle demonstrations for their potential application in nonlinear photonic networks.
format Preprint
id arxiv_https___arxiv_org_abs_2601_06345
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Controlling Rydberg atom-polariton interactions: from exceptional points to fast readout
Šumarac, Tamara
Qiu, Emily H.
Tsesses, Shai
Niu, Peiran
Menssen, Adrian J.
Xu, Wenchao
Walther, Valentin
Delić, Uroš
Choi, Soonwon
Lukin, Mikhail D.
Vuletić, Vladan
Atomic Physics
Quantum Gases
Quantum Physics
Rydberg atoms represent a platform underpinning many recent developments in quantum computation, simulation, sensing, and metrology. They further facilitate optical nonlinearity at the single-photon level when coupled to photons propagating in atomic clouds, which form collective atomic excitations called Rydberg polaritons, strongly interacting with each other. Here, we experimentally explore interactions between a Rydberg polariton in an atomic ensemble and a single, adjacent, Rydberg atom. We discover three different regimes of quantum dynamics corresponding to polariton blockade, coherent exchange, and probabilistic hopping, which are defined by their distinct transmission characteristics, with a transition through an exceptional point occurring between blockade and coherent exchange. We investigate the applications of such interactions for fast, non-destructive detection of Rydberg atoms and present proof-of-principle demonstrations for their potential application in nonlinear photonic networks.
title Controlling Rydberg atom-polariton interactions: from exceptional points to fast readout
topic Atomic Physics
Quantum Gases
Quantum Physics
url https://arxiv.org/abs/2601.06345