[{"month":"08","volume":28,"OA_place":"publisher","date_published":"2026-08-13T00:00:00Z","das_tickbox":"1","oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"article_type":"original","title":"Cascaded optomechanical sensing for small signals","_id":"22958","supplementarymaterial":"yes","publisher":"IOP Publishing","oa_version":"Published Version","publication_identifier":{"eissn":["1367-2630"]},"date_created":"2026-09-17T11:06:23Z","publication_status":"published","article_processing_charge":"Yes","doi":"10.1088/1367-2630/ae8b16","author":[{"last_name":"Marchese","id":"fdac3bd4-d1c1-11ef-aaa4-fad05dc21577","first_name":"Marta M","full_name":"Marchese, Marta M"},{"last_name":"Braun","full_name":"Braun, Daniel","first_name":"Daniel"},{"first_name":"Stefan","full_name":"Nimmrichter, Stefan","last_name":"Nimmrichter"},{"last_name":"Rätzel","full_name":"Rätzel, Dennis","first_name":"Dennis"}],"abstract":[{"lang":"eng","text":"We propose a sensing scheme for detecting weak forces that achieves sensitivity scaling proportional to the number of individual sensors without relying on entanglement or other non-classical resources. Our scheme utilizes coherent averaging across a chain of \r\n optomechanical cavities, unidirectionally coupled via a laser beam. As the beam passes through the cavities, it accumulates phase shifts induced by a common external force acting on the mechanical elements. Remarkably, this fully classical approach achieves the sensitivity scaling typically associated with quantum-enhanced protocols, providing a robust and experimentally feasible route to precision sensing. Potential applications range from high-sensitivity gravitational field measurements at the Large Hadron Collider to probing dark matter interactions and detecting gravitational waves. This work opens a new pathway for leveraging coherent light-matter interactions for force sensing."}],"external_id":{"arxiv":["2602.08981"]},"article_number":"084505","file_date_updated":"2026-10-01T09:17:19Z","DOAJ_listed":"1","corr_author":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","language":[{"iso":"eng"}],"citation":{"ama":"Marchese MM, Braun D, Nimmrichter S, Rätzel D. Cascaded optomechanical sensing for small signals. <i>New Journal of Physics</i>. 2026;28(8). doi:<a href=\"https://doi.org/10.1088/1367-2630/ae8b16\">10.1088/1367-2630/ae8b16</a>","short":"M.M. Marchese, D. Braun, S. Nimmrichter, D. Rätzel, New Journal of Physics 28 (2026).","ista":"Marchese MM, Braun D, Nimmrichter S, Rätzel D. 2026. Cascaded optomechanical sensing for small signals. New Journal of Physics. 28(8), 084505.","chicago":"Marchese, Marta M, Daniel Braun, Stefan Nimmrichter, and Dennis Rätzel. “Cascaded Optomechanical Sensing for Small Signals.” <i>New Journal of Physics</i>. IOP Publishing, 2026. <a href=\"https://doi.org/10.1088/1367-2630/ae8b16\">https://doi.org/10.1088/1367-2630/ae8b16</a>.","ieee":"M. M. Marchese, D. Braun, S. Nimmrichter, and D. Rätzel, “Cascaded optomechanical sensing for small signals,” <i>New Journal of Physics</i>, vol. 28, no. 8. IOP Publishing, 2026.","apa":"Marchese, M. M., Braun, D., Nimmrichter, S., &#38; Rätzel, D. (2026). Cascaded optomechanical sensing for small signals. <i>New Journal of Physics</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1367-2630/ae8b16\">https://doi.org/10.1088/1367-2630/ae8b16</a>","mla":"Marchese, Marta M., et al. “Cascaded Optomechanical Sensing for Small Signals.” <i>New Journal of Physics</i>, vol. 28, no. 8, 084505, IOP Publishing, 2026, doi:<a href=\"https://doi.org/10.1088/1367-2630/ae8b16\">10.1088/1367-2630/ae8b16</a>."},"intvolume":"        28","publication":"New Journal of Physics","issue":"8","project":[{"_id":"3b79db15-b029-11f1-a721-dbd41d892ec2","name":"Quantum Science Austria (Hosten)","grant_number":"COE01"}],"type":"journal_article","has_accepted_license":"1","status":"public","scopus_import":"1","ddc":["530"],"fulldoi":"https://doi.org/10.1088/1367-2630/ae8b16","day":"13","date_updated":"2026-10-01T09:19:39Z","OA_type":"gold","researchdata_availability":"no","quality_controlled":"1","acknowledgement":"We thank Germain Tobar, Navdeep Arya, Magdalena Zych, Teodor Strömberg and Onur Hosten for useful discussions. M M M acknowledges support from the Walter Benjamin Programme (Project Number 510053905) and from the Austrian Science Fund (FWF) [10.55776/COE1]. DB acknowledges funding by the EU EIC Pathfinder project QuCoM (101046973). D R acknowledges funding by the Federal Ministry of Education and Research of Germany in the project ‘Open6GHub’ (Grant Number: 16KISK016), financial support from EPSRC (Engineering & Physical Sciences Research Council, United Kingdom) Grant Number EP/X009467/1, and support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2123 QuantumFrontiers - 390837967.","file":[{"date_created":"2026-10-01T09:17:19Z","access_level":"open_access","file_id":"23018","checksum":"b932d9f4bac1a2f6777e41d884b7b703","file_size":799610,"success":1,"creator":"dernst","content_type":"application/pdf","relation":"main_file","file_name":"2026_NewJourPhysics_Marchese.pdf","date_updated":"2026-10-01T09:17:19Z"}],"year":"2026","department":[{"_id":"OnHo"}],"dataavailabilitystatement":"All data that support the findings of this study are included within the article (and any supplementary files).","arxiv":1}]