Observation of photonic dynamics in dissipative quantum Rabi models

• URL: http://arxiv.org/abs/2506.16062v1
• Date: Thu, 19 Jun 2025 06:40:16 GMT
• Title: Observation of photonic dynamics in dissipative quantum Rabi models
• Authors: Wen Ning, Ri-Hua Zheng, Jia-Hao Lü, Ken Chen, Xin Zhu, Fan Wu, Zhen-Biao Yang, Shi-Biao Zheng,
• Abstract summary: An open quantum Rabi model (QRM) with a strong photonic dissipation has not been experimentally explored.<n>We present the first experimental demonstration of such an open system in circuit QED.<n>The results demonstrate that the system's behavior is significantly modified by photonic dissipation.
• Score: 5.792293600651519
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The quantum Rabi model (QRM), composed of a qubit interacting with a quantized photonic field, is a cornerstone of quantum optics. The QRM with dominant unitary dynamics has been demonstrated in circuit quantum electrodynamics (QED) systems, but an open QRM with a strong photonic dissipation has not been experimentally explored. We here present the first experimental demonstration of such an open system in circuit QED, featuring a controlled competition between the coherent qubit-field interaction and the photonic dissipation. We map out the photon number distributions of the dissipative resonator for different coupling strengths in the steady state. We further observe the variation of the photon number during the system's evolution toward the steady state with fixed control parameters. The results demonstrate that the system's behavior is significantly modified by photonic dissipation.

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