HIGH-SENSITIVITY GRAVITATIONAL-WAVE ANTENNA WITH PARAMETRIC TRANSDUCER READOUT

被引：151

作者：

BLAIR, DG

IVANOV, EN

TOBAR, ME

TURNER, PJ

VANKANN, F

HENG, IS

机构：

[1] Physics Department, University of Western Australia, Nedlands

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.74.1908

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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. © 1995 The American Physical Society.

引用

页码：1908 / 1911

页数：4

共 18 条

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