Quantum-Nondemolition Probing of Multiphoton Transitions between Dressed States in a Strongly Driven Jaynes--Cummings System
Abstract
The response of the Jaynes--Cummings (JC) model to strong driving has been examined previously, but the origin of intriguing features near emitter--cavity resonance remains poorly understood because of the large background in conventional transmission spectroscopy. Here we introduce a spectroscopic approach for circuit quantum electrodynamics that combines strong cavity driving with quantum-nondemolition qubit readout. Separating the drive and readout substantially enhances the measurement sensitivity as compared with conventional cavity-transmission spectroscopy. With this technique, we identify the near-resonant features as multiphoton transitions between emitter--photon dressed states of the same parity, and resolve transitions between dressed states of opposite parity. Away from resonance, we also observe selective enhancement and suppression of multiphoton transitions, together with transitions involving the second excited state of the anharmonic qubit. Our approach opens a route to resolving the rich transition structure of the JC ladder and probing strongly driven light--matter interactions.
Related
- Quantum Optics of harmonic generation in the strongly driven Jaynes-Cummings-type system
- On the Structure of Quantum Finite-Level Systems: Decoherence-Free Subsystems, Quantum Nondemolition Variables, and Back-Action-Evading Measurements
- Measuring the Quantum Phase of Multiphoton Systems
- Dynamical protection of quantum steering and fidelity dynamics in the double Jaynes-Cummings model
- Noise-Assisted Quantum Entanglement: Memory-Enhanced Coherence in Stochastic Jaynes-Cummings Dynamics
BibTeX
@misc{ren2026quantumnondemolition,
title = {{Quantum-Nondemolition Probing of Multiphoton Transitions between Dressed States in a Strongly Driven Jaynes--Cummings System}},
author = {Han-Yu Ren and Zi-Yi Liu and Wen-Qi Fu and Zhuo Chen and Wen-Hua Qin and Tao Rong and Bo-Yang An and ZhiAng Qin and Li-Wei Liu and Rami Mrad and Ming Gong and Yingqiu Mao and Yuan Zhang and Johannes Majer},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.02861},
eprint = {2611.02861},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.02861},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Quantum-Nondemolition Probing of Multiphoton Transitions between Dressed States in a Strongly Driven Jaynes--Cummings System
AU - Han-Yu Ren
AU - Zi-Yi Liu
AU - Wen-Qi Fu
AU - Zhuo Chen
AU - Wen-Hua Qin
AU - Tao Rong
AU - Bo-Yang An
AU - ZhiAng Qin
AU - Li-Wei Liu
AU - Rami Mrad
AU - Ming Gong
AU - Yingqiu Mao
AU - Yuan Zhang
AU - Johannes Majer
PY - 2026
DA - 2026/11/02
PB - arXiv
DO - 10.48550/arxiv.2611.02861
UR - https://arxiv.org/abs/2611.02861
AB - The response of the Jaynes--Cummings (JC) model to strong driving has been examined previously, but the origin of intriguing features near emitter--cavity resonance remains poorly understood because of the large background in conventional transmission spectroscopy. Here we introduce a spectroscopic approach for circuit quantum electrodynamics that combines strong cavity driving with quantum-nondemolition qubit readout. Separating the drive and readout substantially enhances the measurement sensitivity as compared with conventional cavity-transmission spectroscopy. With this technique, we identify the near-resonant features as multiphoton transitions between emitter--photon dressed states of the same parity, and resolve transitions between dressed states of opposite parity. Away from resonance, we also observe selective enhancement and suppression of multiphoton transitions, together with transitions involving the second excited state of the anharmonic qubit. Our approach opens a route to resolving the rich transition structure of the JC ladder and probing strongly driven light--matter interactions.
ER -