A superconducting quantum circuit single artificial atom maser

Quantum Physics [Submitted on 6 Apr 2026] A superconducting quantum circuit single artificial atom maser Maria Mucci, Nicholas Hougland, Chun-Che Wang, Israa Yusuf, Chenxu Liu, David Pekker, Michael Hatridge We demonstrate a circuit QED analog of an atomic micromaser that utilizes an artificial, multi level atom, pumped into a population-inverted state by a microwave tone, as the gain medium. Our demonstration is enabled by the flexibility of the circuit QED platform, which allowed us to precisely engineer the level-structure, coupling, and dissipation of the micromaser components. Our device shows rich physics and perhaps points to ways to use the recent developments in the domain of microwave quantum circuits to probe the domain of maser physics. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2604.05105 [quant-ph]   (or arXiv:2604.05105v1 [quant-ph] for this version)   https://doi.org/10.48550/arXiv.2604.05105 Focus to learn more Submission history From: Chun-Che Wang [view email] [v1] Mon, 6 Apr 2026 19:10:03 UTC (12,382 KB) Access Paper: HTML (experimental) view license Current browse context: quant-ph < prev   |   next > new | recent | 2026-04 References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar Export BibTeX Citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Demos Related Papers About arXivLabs Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)