Spin amplification in realistic systems

[2409.11956] Spin amplification in realistic systems Skip to main content Search Submit Donate Log in Quantum Physics arXiv:2409.11956 (quant-ph) [Submitted on 18 Sep 2024 ( v1 ), last revised 27 Aug 2026 (this version, v3)] Title: Spin amplification in realistic systems Authors: Ivan Iakoupov , Victor M. Bastidas , Yuichiro Matsuzaki , Shiro Saito , William J. Munro View PDF HTML (experimental) Abstract: Spin amplification is the process that ideally increases the number of excited spins when one of them is excited initially. We show that by applying optimal control techniques to design classical drive pulse shapes, spin amplification can be achieved in a previously unexplored fast regime, with amplification times comparable to the intrinsic interaction timescale. This is an order of magnitude faster than the previous protocols and makes spin amplification possible even with significant decoherence and inhomogeneity in the spin system. The initial spin excitation can be delocalized over the entire ensemble, which is a more typical situation when a photon is collectively absorbed by the spins. We focus on the superconducting persistent-current artificial atoms and the Rydberg atoms as spins. Comments: 17 pages, 9 figures Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2409.11956 [quant-ph] (or arXiv:2409.11956v3 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2409.11956 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Phys. Rev. Research 8, 033227 (2026) Related DOI : https://doi.org/10.1103/4nqk-9t5s Focus to learn more DOI(s) linking to related resources Submission history From: Ivan Iakoupov [ view email ] [v1] Wed, 18 Sep 2024 13:09:10 UTC (804 KB) [v2] Mon, 17 Nov 2025 09:18:04 UTC (645 KB) [v3] Thu, 27 Aug 2026 02:35:06 UTC (258 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: quant-ph < prev | next > new | recent | 2024-09 References & Citations INSPIRE HEP SciX 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 Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab)

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