@Article{LiccardoLeMaAgFrBoCo:2023:DeStSe,
               author = "Liccardo, Vincenzo and Lenzi, C. H. and Marinho Junior, R. M. and 
                         Aguiar, Odylio Denys de and Frajuca, C. and Bortoli, F. da Silva 
                         and Costa, Cesar Augusto",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {Instituto 
                         Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {} and {} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "The design strain sensitivity of the schenberg spherical resonant 
                         antenna for gravitational waves",
              journal = "Scientific Reports",
                 year = "2023",
               volume = "13",
               number = "1",
                pages = "e17706",
                month = "Dec.",
             abstract = "The main purpose of this study is to review the Schenberg resonant 
                         antenna transfer function and to recalculate the antenna design 
                         strain sensitivity for gravitational waves. We consider the 
                         spherical antenna with six transducers in the semi dodecahedral 
                         configuration. When coupled to the antenna, the transducer-sphere 
                         system will work as a mass-spring system with three masses. The 
                         first one is the antenna effective mass for each quadrupole mode, 
                         the second one is the mass of the mechanical structure of the 
                         transducer first mechanical mode and the third one is the 
                         effective mass of the transducer membrane that makes one of the 
                         transducer microwave cavity walls. All the calculations are done 
                         for the degenerate (all the sphere quadrupole mode frequencies 
                         equal) and non-degenerate sphere cases. We have come to the 
                         conclusion that the ultimate sensitivity of an advanced version of 
                         Schenberg antenna (aSchenberg) is around the standard quantum 
                         limit (although the parametric transducers used could, in 
                         principle, surpass this limit). However, this sensitivity, in the 
                         frequency range where Schenberg operates, has already been 
                         achieved by the two aLIGOs in the O3 run, therefore, the only 
                         reasonable justification for remounting the Schenberg antenna and 
                         trying to place it in the sensitivity of the standard quantum 
                         limit would be to detect gravitational waves with another physical 
                         principle, different from the one used by laser interferometers. 
                         This other physical principle would be the absorption of the 
                         gravitational wave energy by a resonant mass like Schenberg.",
                  doi = "10.1038/s41598-023-43808-1",
                  url = "http://dx.doi.org/10.1038/s41598-023-43808-1",
                 issn = "2045-2322",
             language = "en",
           targetfile = "s41598-023-43808-1.pdf",
        urlaccessdate = "16 jun. 2024"
}