Nonreciprocal Photon Blockade in an Asymmetric Cavity
Summarize this article with:
Quantum Physics arXiv:2606.10319 (quant-ph) [Submitted on 9 Jun 2026] Title:Nonreciprocal Photon Blockade in an Asymmetric Cavity Authors:Shao-Xiong Wu, Jin-Na Fan, Dan Yan, Cheng-Hua Bai, Qiannan Wu, Mengwei Li View a PDF of the paper titled Nonreciprocal Photon Blockade in an Asymmetric Cavity, by Shao-Xiong Wu and 4 other authors View PDF HTML (experimental) Abstract:We propose a scheme to realize tunable and strong nonreciprocal photon blockade (PB) in an asymmetric Fabry-Pérot cavity. The setup consists of a single-mode optical cavity trapping a two-level atom, with the cavity coherently driven by a laser and the atom pumped by an auxiliary control field of the same frequency. By engineering quantum interference between multiple excitation pathways by adjusting the amplitude and relative phase of the control laser, we identify two distinct optimal control conditions that enable directional suppression of two-photon states. Under optimal control conditions, strong nonreciprocal PB is achieved, with a nonreciprocal ratio exceeding 30 dB over a broad operational bandwidth. The proposed protocol requires only standard coherent laser sources and is compatible with current cavity QED experimental setups, offering a practical and scalable platform for nonreciprocal quantum photonics. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2606.10319 [quant-ph] (or arXiv:2606.10319v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2606.10319 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Journal reference: Advanced Quantum Technologies, 2026; 9: e70324 Related DOI: https://doi.org/10.1002/qute.70324 Focus to learn more DOI(s) linking to related resources Submission history From: Shao-Xiong Wu [view email] [v1] Tue, 9 Jun 2026 02:15:39 UTC (1,466 KB) Full-text links: Access Paper: View a PDF of the paper titled Nonreciprocal Photon Blockade in an Asymmetric Cavity, by Shao-Xiong Wu and 4 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-06 References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: 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?)