Advanced Virgo Plus for O5 -- Design Report Overview
Instrumentation and Methods for Astrophysics
2026-04-02 v2 General Relativity and Quantum Cosmology
Instrumentation and Detectors
Abstract
This document presents an overview of the design, implementation, and expected performance of the Advanced Virgo Plus (AdV+) upgrades in view of the O5 observing run. Following the experience gained during the O4 commissioning and operations, the Virgo Collaboration has revised the upgrade strategy to address limitations associated with marginally stable recycling cavities. The O5 upgrade program combines elements from the original AdV+ Phase II project with new design solutions, including the implementation of stable recycling cavities, a major modification to the central interferometer layout, and a comprehensive renewal of critical subsystems. The planned upgrades are organized in two steps, targeting progressive improvements in operational stability, noise reduction, and detector sensitivity. Key developments include new vacuum infrastructures, suspensions, mirrors, optical configurations, quantum noise reduction systems, and high-power laser technologies. The resulting configuration is expected to significantly enhance the interferometer performance, enabling a substantial increase in astrophysical reach and scientific return during O5.
Cite
@article{arxiv.2603.20342,
title = {Advanced Virgo Plus for O5 -- Design Report Overview},
author = {F. Acernese and A. Agapito and D. Agarwal and I. -L. Ahrend and L. Aiello and A. Ain and S. Albanesi and W. Ali and C. Alléné and A. Allocca and W. Amar and A. Amato and F. Amicucci and C. Amra and M. Andia and T. Andrić and S. Ansoldi and S. Antier and E. Z. Appavuravther and M. Arca Sedda and F. Arciprete and F. Armato and N. Arnaud and L. Asprea and M. Assiduo and S. Assis de Souza Melo and P. Astone and F. Attadio and F. Aubin and G. Avallone and S. Babak and S. Bagnasco and T. Baka and G. Balbi and G. Baldi and N. Baldicchi and G. Ballardin and B. Banerjee and M. Baratti and P. Barneo and F. Barone and M. Barsuglia and D. Barta and A. Basti and M. Bawaj and M. Bazzan and F. Beirnaert and M. Bejger and D. Belardinelli and C. Bellani and L. Bellizzi and D. Beltran-Martinez and I. Bentara and S. Bera and S. Bernuzzi and D. Bersanetti and T. Bertheas and A. Bertolini and G. Bevilacqua and V. Biancalana and A. Bianchi and F. Bianchi and A. Binetti and S. Bini and S. Biot and M. Bitossi and M. -A. Bizouard and G. Boileau and M. Boldrini and A. Bolliand and R. Bondarescu and F. Bondu and R. Bonnand and N. Borghi and V. Boschi and Y. Bothra and A. Boudon and A. Bozzi and C. Bradaschia and M. Branchesi and T. Briant and A. Brillet and M. L. Brozzetti and G. Bruno and F. Bucci and O. Bulashenko and T. Bulik and H. J. Bulten and R. Buscicchio and D. Buskulic and C. Buy and R. Cabrita and G. Cagnoli and E. Calloni and M. Canepa and G. Caneva Santoro and E. Capocasa and G. Capoccia and G. Capurri and G. Carapella and F. Carbognani and M. Carpinelli and G. Carullo and A. Casallas-Lagos and J. Casanueva Diaz and C. Casentini and R. Cavalieri and G. Cella and S. Cepic and P. Cerdá-Durán and E. Cesarini and W. Chaibi and E. Chassande-Mottin and S. Chaty and P. Chessa and F. Chiadini and A. Chincarini and M. L. Chiofalo and A. Chiummo and N. Christensen and G. Ciani and M. Cieślar and P. Ciecielag and M. Cifaldi and S. Clesse and F. Cleva and E. Coccia and E. Codazzo and P. -F. Cohadon and S. Colace and A. Colombo and L. Conti and I. Cordero-Carrión and S. Corezzi and L. A. Corubolo and A. Cozzumbo and J. R. Cudell and E. Cuoco and M. Cusinato and B. D'Angelo and S. D'Antonio and L. D'Onofrio and D. D'Urso and G. Dálya and S. Dall'Osso and T. Dal Canton and S. Dal Pra and S. Danilishin and V. Dattilo and A. Daumas and M. Davier and P. Davis and J. Degallaix and C. J. Delgado Mendez and S. Della Torre and W. Del Pozzo and A. Demagny and G. Demasi and A. Depasse and J. De Bolle and M. De Laurentis and F. De Lillo and F. De Marco and F. De Matteis and R. De Pietri and R. De Rosa and C. De Rossi and R. De Simone and C. Diaz and D. Diksha and J. Ding and M. Di Cesare and L. Di Fiore and M. Di Giovanni and T. Di Girolamo and S. Di Pace and I. Di Palma and D. Di Piero and F. Di Renzo and A. Domiciano De Souza and T. Dooney and O. Dorosh and M. Drago and M. Dubois and U. Dupletsa and H. Duval and P. -A. Duverne and M. Ebersold and H. Einsle and L. Errico and M. Esposito and F. Fabrizi and V. Fafone and M. Fays and E. Fenyvesi and T. Fernandes and S. Ferraiuolo and F. Fidecaro and P. Figura and A. Fiori and I. Fiori and R. Fittipaldi and V. Fiumara and R. Flaminio and J. A. Font and K. Franceschetti and F. Frappez and S. Frasca and F. Frasconi and A. Freise and O. Freitas and B. Gadre and S. Galaudage and B. Garaventa and J. García-Bellido and P. García Abia and J. Gargiulo and X. Garrido and F. Garufi and C. Gasbarra and F. Gautier and G. Gemme and A. Gennai and V. Gennari and Archisman Ghosh and S. Gkaitatzis and F. Glotin and S. Gomez Lopez and A. Goodwin-Jones and M. Gosselin and C. Gostiaux and R. Gouaty and A. Grado and M. Granata and V. Granata and G. Greco and A. C. Green and G. Grignani and C. Grimaud and D. Guerra and D. Guetta and G. M. Guidi and F. Gulminelli and Y. Guo and N. Gutierrez and M. Haney and S. Harikumar and T. Harmark and J. Harms and M. T. Hartman and B. Haskell and D. Hegde and H. Heitmann and G. Hemming and J. Heynen and S. Hild and D. Hofman and N. A. Holland and L. Honet and C. A. Hrishikesh and W. -F. Hsu and V. Hui and L. Iampieri and G. A. Iandolo and M. Ianni and G. Iannone and A. Ierardi and G. Iorio and P. Iosif and C. Jacquet and P. -E. Jacquet and T. Jacquot and J. Janquart and S. Jaraba and P. Jaranowski and G. Joubert and V. Juste and W. Kiendrebeogo and G. Koekoek and S. Koley and A. E. Koloniari and A. Koushik and A. Królak and E. Kraja and S. L. Kranzhoff and J. Kubisz and A. Lakhal and M. Lalleman and A. Lartaux-Vollard and L. Lavezzi and C. Lazarte and C. Lazzaro and P. Leaci and A. Lemaître and M. Lenti and M. Leonardi and M. Lequime and N. Leroy and N. Letendre and M. Lethuillier and S. Lexmond and M. Le Jean and T. G. F. Li and J. -P. Locquet and A. Longo and D. Lopez and M. Lopez Portilla and M. Lorenzini and V. Loriette and G. Losurdo and L. Lucchesi and D. Lumaca and L. Lunghini and A. Macquet and S. S. Madekar and S. Maenaut and R. Maggiore and M. Magnozzi and E. Majorana and N. Man and M. Mancarella and V. Mangano and M. Mantovani and M. Mapelli and S. Marchetti and C. Marinelli and F. Marion and S. Marsat and F. Martelli and M. Martinez and V. Martinez and A. Martini and L. Massaro and A. Masserot and S. Mastrogiovanni and G. Mastropasqua and T. Matcovich and L. Maurin and Q. Meijer and L. Mereni and G. Merino and M. Merzougui and B. Mestichelli and A. Miani and C. Michel and A. L. Miller and E. Milotti and V. Milotti and Y. Minenkov and Ll. M. Mir and L. Mirasola and C. -A. Miritescu and A. L. Mitchell and L. Mobilia and M. Montani and A. Moreso Serra and G. Morras and A. Moscatello and B. Mours and C. M. Mow-Lowry and L. Muccillo and F. Muciaccia and D. Nabari and S. Nadji and A. Nagar and D. Nanadoumgar-Lacroze and V. Napolano and I. Nardecchia and H. Narola and L. Naticchioni and L. Negri and A. Nemmani and S. Nissanke and F. Nocera and J. Novak and J. F. Nuño Siles and M. Oertel and G. Oganesyan and M. Orselli and A. Ouzriat and C. Périgois and L. Paiella and M. A. Palaia and P. P. Palma and C. Palomba and P. Palud and P. T. H. Pang and F. Pannarale and M. Panzeri and F. Paoletti and A. Paolone and L. Papalini and G. Papigkiotis and A. Paquis and A. Parisi and D. Pascucci and A. Pasqualetti and R. Passaquieti and D. Passuello and B. Patricelli and A. Perego and G. Perna and A. Perreca and J. Perret and S. Perriès and J. W. Perry and S. Peters and C. Petrillo and M. Piarulli and L. Piccari and M. Pichot and M. Piendibene and F. Piergiovanni and L. Pierini and G. Pierra and V. Pierro and M. Pietrzak and M. Pillas and L. Pinard and I. M. Pinto and M. Pinto and A. Placidi and E. Placidi and W. Plastino and R. Poggiani and E. Polini and J. Pomper and E. Porcelli and E. K. Porter and R. Poulton and M. Pracchia and T. Pradier and G. Principe and G. A. Prodi and P. Prosperi and P. Prosposito and P. Puppo and G. Quéméner and I. Rainho and A. Ramos-Buades and P. Rapagnani and M. Razzano and T. Regimbau and A. I. Renzini and B. Revenu and A. Revilla Peña and L. Ricca and F. Ricci and M. Ricci and A. Ricciardone and S. Rinaldi and F. Robinet and A. Rocchi and L. Rolland and R. Romano and A. Romero-Rodríguez and L. Rosa and D. Rosińska and S. Roy and D. Rozza and P. Ruggi and E. Ruiz Morales and P. Saffarieh and T. Sainrat and S. Sajith Menon and O. S. Salafia and L. Salconi and F. Salemi and M. Sallé and S. Salvador and A. Samajdar and N. Sanchis-Gual and F. Santoliquido and F. Sarandrea and A. Sasli and P. Sassi and B. Sassolas and S. Sayah and V. Scacco and S. Schmidt and K. Schouteden and M. Schulz and M. Scialpi and M. Seglar-Arroyo and J. W. Seo and V. Sequino and M. Serra and A. Sevrin and N. S. Shcheblanov and L. Silenzi and L. Silvestri and V. Sipala and L. Smith and S. Soares de Albuquerque Filho and V. Sordini and F. Sorrentino and F. Spada and V. Spagnuolo and P. Spinicelli and D. A. Steer and J. Steinlechner and S. Steinlechner and N. Stergioulas and P. Stevens and M. Suchenek and S. Sudhagar and J. Suresh and A. Svizzeretto and B. L. Swinkels and A. Syx and M. J. Szczepańczyk and P. Szewczyk and M. Tacca and M. Tagliazucchi and I. Takimoto Schmiegelow and N. Tamanini and E. N. Tapia San Martín and C. Taranto and A. Theodoropoulos and J. Tissino and P. Tiwari and E. Tofani and M. Toffano and A. Torres-Forné and I. Tosta e Melo and E. Tournefier and M. Trad Nery and A. Trapananti and R. Travaglini and F. Travasso and M. C. Tringali and G. Troian and A. Trovato and L. Trozzo and K. Turbang and M. Turconi and C. Turski and H. Ubach and M. Vacatello and M. Valentini and E. Vallejo-Pagès and S. Vallero and M. van Dael and E. Van den Bossche and J. F. J. van den Brand and C. Van Den Broeck and M. van der Kolk and M. van der Sluys and A. Van de Walle and J. van Dongen and H. van Haevermaet and J. V. van Heijningen and P. Van Hove and N. van Remortel and M. Vardaro and G. Vedovato and S. Venikoudis and P. Verdier and M. Vereecken and D. Verkindt and F. Vetrano and A. Veutro and A. Viceré and N. Villanueva Espinosa and J. -Y. Vinet and S. Viret and H. Vocca and M. Was and M. Wils and J. Woehler and I. C. F. Wong and T. Wouters and M. Wright and Z. Wu and N. Yadav and T. Zelenova and J. -P. Zendri and M. Zeoli and M. Zerrad and Y. Zhao and L. Zimmermann},
journal= {arXiv preprint arXiv:2603.20342},
year = {2026}
}