Investigation of ultra-high sensitivity klystron cavity transducers for broadband resonant-mass gravitational wave detectors.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

We show that, with a suitable choice of the parameters of the gravitational wave detector Mario Schenberg, with technological accessible parameters (using state-of-art electronics), its sensitivity curve can be improved over the current project curve to become competitive with interferometric detectors in a frequency band of ~1500 Hz, in the region from 1000 to 10000 Hz (these competitive bands are centered at the sphere s quadrupole modes). The sensitivity curve of an array of 100 identical spheres identical to the Schenberg one is also analyzed, and is competitive against advanced LIGO in the entire band. A detailed study of the project s viability is conducted, with an emphasis on the project of the klystron resonant cavity, which will have a center post with a 1 nm gap, which represents a great technological challenge. This challenge is analyzed in terms of the cavity project as well as with a focus on the Casimir effect on the cavity. This could open an opportunity for precise measurements of this effect on a new distance scale compared to current measurements (in the m scale).

ASSUNTO(S)

ressoadores a cavidades transdutores teoria quântica dos campos efeito casimir detectores de ondas gravitacionais física nuclear

ACESSO AO ARTIGO

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