High Sensitivity Gravitational Wave Antenna with Parametric Transducer Readout

1995178 citationsJournal Article

Authors

D. G. Blair · University of Western Australia

E.N. Ivanov · University of Western Australia

Michael E. Tobar · University of Western Australia

P. Turner · University of Western Australia

F. van Kann · University of Western Australia

I. S. Heng · University of Western Australia

Abstract

A high- $Q$ niobium resonant mass gravitational radiation antenna with a superconducting parametric transducer and noncontacting readout is shown to achieve a noise temperature of about 2 mK using a zero order predictor filter. The predicted intrinsic cold damping of a parametric transducer is confirmed, along with predicted backaction limits on the sensitivity. While the antenna has the highest intrinsic $Q$ factor and lowest noise temperature ever observed in a full scale antenna, the possibility of further improvements is demonstrated.

Topics & Keywords

Pulsars and Gravitational Waves Research Radio Astronomy Observations and Technology Superconducting and THz Device Technology

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Physical Review Letters

Volume 74, Issue 11, pp. 1908-1911

DOI: 10.1103/physrevlett.74.1908

Field-Weighted Citation Impact: 5.50