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Main Authors: Yang, Liufeng, Wang, Jinling, Li, Huijun, Cao, Junhui, Kavokin, Alexey, Wu, Congjun
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.13948
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author Yang, Liufeng
Wang, Jinling
Li, Huijun
Cao, Junhui
Kavokin, Alexey
Wu, Congjun
author_facet Yang, Liufeng
Wang, Jinling
Li, Huijun
Cao, Junhui
Kavokin, Alexey
Wu, Congjun
contents We propose collective nuclear polaritons formed by hybridizing a 229Th nuclear ensemble with a vacuum-ultraviolet cavity mode generated via four-wave mixing, achieving a collective light-matter coupling that scales as $\sqrt{N}$. In the strong-coupling regime the system displays vacuum Rabi oscillations, indicating the hybridization between cavity photons and nuclear excitations. In the superradiant regime, the stored excitation is released in a cooperative burst with peak intensity scaling as $N^2$. The emission lifetime shrinks from thousands of seconds to the millisecond scale and remains tunable. Detuning sweeps across the polariton avoided crossing allow adiabatic conversion of the photonic excitation into a collective nuclear excitation, enabling reversible quantum storage. Our results demonstrate that cavity-mediated nuclear polaritons enable deterministic lifetime engineering and coherent quantum storage in nuclear systems.
format Preprint
id arxiv_https___arxiv_org_abs_2603_13948
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Collective Nuclear Polaritons with Coherent and Tunable Excitation Dynamics
Yang, Liufeng
Wang, Jinling
Li, Huijun
Cao, Junhui
Kavokin, Alexey
Wu, Congjun
Quantum Physics
We propose collective nuclear polaritons formed by hybridizing a 229Th nuclear ensemble with a vacuum-ultraviolet cavity mode generated via four-wave mixing, achieving a collective light-matter coupling that scales as $\sqrt{N}$. In the strong-coupling regime the system displays vacuum Rabi oscillations, indicating the hybridization between cavity photons and nuclear excitations. In the superradiant regime, the stored excitation is released in a cooperative burst with peak intensity scaling as $N^2$. The emission lifetime shrinks from thousands of seconds to the millisecond scale and remains tunable. Detuning sweeps across the polariton avoided crossing allow adiabatic conversion of the photonic excitation into a collective nuclear excitation, enabling reversible quantum storage. Our results demonstrate that cavity-mediated nuclear polaritons enable deterministic lifetime engineering and coherent quantum storage in nuclear systems.
title Collective Nuclear Polaritons with Coherent and Tunable Excitation Dynamics
topic Quantum Physics
url https://arxiv.org/abs/2603.13948