Stimulated emission for a three-level artificial atom in waveguide quantum electrodynamics
Abstract
This work is devoted to a theoretical study of the interaction of a quantum three-level ladder system with a continuous electromagnetic field in a one-dimensional open waveguide. We consider a situation closely resembling stimulated emission - the scattering of a single-photon exponential pulse by an excited three-level emitter. Using the real-space formalism, we obtain an analytical expression for the wavefunction of our system. We show that, for the low anharmonicity of a three-level system inherent to a transmon (the most common type of artificial atom), the influence of the third level can have a significant effect on the system's behavior. Namely, the presence of the third level largely suppresses the stimulated emission effect if the relative anharmonicity is lower than | αr | < 4%. However, for a three-level system, it is possible to obtain correlation effects such as photon bunching in the reflected field, which can also be 'switched off' by tuning the incident photon parameters.
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BibTeX
@misc{chuikin2026stimulated,
title = {{Stimulated emission for a three-level artificial atom in waveguide quantum electrodynamics}},
author = {O. A. Chuikin and Ya. S. Greenberg and V. V. Taravkova and O. V. Kibis},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.09776},
eprint = {2610.09776},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.09776},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Stimulated emission for a three-level artificial atom in waveguide quantum electrodynamics
AU - O. A. Chuikin
AU - Ya. S. Greenberg
AU - V. V. Taravkova
AU - O. V. Kibis
PY - 2026
DA - 2026/10/07
PB - arXiv
DO - 10.48550/arxiv.2610.09776
UR - https://arxiv.org/abs/2610.09776
AB - This work is devoted to a theoretical study of the interaction of a quantum three-level ladder system with a continuous electromagnetic field in a one-dimensional open waveguide. We consider a situation closely resembling stimulated emission - the scattering of a single-photon exponential pulse by an excited three-level emitter. Using the real-space formalism, we obtain an analytical expression for the wavefunction of our system. We show that, for the low anharmonicity of a three-level system inherent to a transmon (the most common type of artificial atom), the influence of the third level can have a significant effect on the system's behavior. Namely, the presence of the third level largely suppresses the stimulated emission effect if the relative anharmonicity is lower than | α_r | < 4%. However, for a three-level system, it is possible to obtain correlation effects such as photon bunching in the reflected field, which can also be 'switched off' by tuning the incident photon parameters.
ER -