Measuring gravitomagnetic effects by a multi-ring-laser gyroscope

被引：138

作者：

Bosi, F. ^{[1
]}

Cella, G. ^{[1
]}

Di Virgilio, A. ^{[1
]}

Ortolan, A. ^{[2
]}

Porzio, A. ^{[3
,4
]}

Solimeno, S. ^{[3
,4
]}

Cerdonio, M. ^{[5
]}

Zendri, J. P. ^{[5
]}

Allegrini, M. ^{[6
,7
]}

Belfi, J. ^{[6
,7
]}

Beverini, N. ^{[6
,7
]}

Bouhadef, B. ^{[6
,7
]}

Carelli, G. ^{[6
,7
]}

Ferrante, I. ^{[6
,7
]}

Maccioni, E. ^{[6
,7
]}

Passaquieti, R. ^{[6
,7
]}

Stefani, F. ^{[6
,7
]}

Ruggiero, M. L. ^{[8
,9
]}

Tartaglia, A. ^{[8
,9
]}

Schreiber, K. U. ^{[10
]}

Gebauer, A. ^{[10
]}

Wells, J-P. R. ^{[11
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy

[2] INFN Legnaro Padova, Lab Nazl Legnaro, Padua, Italy

[3] Univ Naples Federico II, Naples, Italy

[4] CNR SPIN, Naples, Italy

[5] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy

[6] Univ Pisa, Pisa, Italy

[7] CNISM, Pisa, Italy

[8] Politecn Torino, Turin, Italy

[9] Ist Nazl Fis Nucl, I-10125 Turin, Italy

[10] Tech Univ Munich, Fundamentalstn Wettzell, Forsch Einrichtung Satellitengeodaesie, D-93444 Bad Kotzting, Germany

[11] Univ Canterbury, Dept Phys & Astron, Christchurch 8020, New Zealand

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 12期

关键词：

GENERAL-RELATIVITY; ROTATION; FRAME; SATELLITE; MOTION; STRAIN; LARES; PHASE; TILT;

D O I：

10.1103/PhysRevD.84.122002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose an underground experiment to detect the general relativistic effects due to the curvature of space-time around the Earth (de Sitter effect) and to the rotation of the planet (dragging of the inertial frames or Lense-Thirring effect). It is based on the comparison between the IERS value of the Earth rotation vector and corresponding measurements obtained by a triaxial laser detector of rotation. The proposed detector consists of six large ring lasers arranged along three orthogonal axes. In about two years of data taking, the 1% sensitivity required for the measurement of the Lense-Thirring drag can be reached with square rings of 6 m side, assuming a shot noise limited sensitivity (20 prad/s/root Hz). The multigyros system, composed of rings whose planes are perpendicular to one or the other of three orthogonal axes, can be built in several ways. Here, we consider cubic and octahedral structures. It is shown that the symmetries of the proposed configurations provide mathematical relations that can be used to ensure the long term stability of the apparatus.

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