A gravitational wave observatory operating beyond the quantum shot-noise limit

被引：0

作者：

Abadie, J. ^{[1
]}

Abbott, B. P. ^{[1
]}

Abbott, R. ^{[1
]}

Abbott, T. D. ^{[62
]}

Abernathy, M. ^{[2
]}

Adams, C. ^{[3
]}

Adhikari, R. ^{[1
]}

Affeldt, C. ^{[4
,11
]}

Allen, B. ^{[4
,5
,6
,11
]}

Allen, G. S.

Ceron, E. Amador ^{[5
]}

Amariutei, D. ^{[8
]}

Amin, R. S. ^{[9
]}

Anderson, S. B. ^{[1
]}

Anderson, W. G. ^{[5
]}

Arai, K. ^{[1
]}

Arain, M. A. ^{[8
]}

Araya, M. C. ^{[1
]}

Aston, S. M. ^{[10
]}

Atkinson, D. ^{[7
]}

Aufmuth, P. ^{[4
,11
]}

Aulbert, C. ^{[4
,11
]}

Aylott, B. E. ^{[10
]}

Babak, S. ^{[12
]}

Baker, P. ^{[13
]}

Ballmer, S. ^{[25
]}

Barker, D. ^{[7
]}

Barr, B. ^{[2
]}

Barriga, P. ^{[16
]}

Barsotti, L. ^{[15
]}

Barton, M. A. ^{[7
]}

Bartos, I. ^{[17
]}

Bassiri, R. ^{[2
]}

Bastarrika, M. ^{[2
]}

Batch, J. ^{[7
]}

Bauchrowitz, J. ^{[4
,11
]}

Behnke, B. ^{[12
]}

Bell, A. S. ^{[2
]}

Belopolski, I. ^{[17
]}

Benacquista, M. ^{[18
]}

Berliner, J. M. ^{[7
]}

Bertolini, A. ^{[4
,11
]}

Betzwieser, J. ^{[1
]}

Beveridge, N. ^{[2
]}

Beyersdorf, P. T. ^{[19
]}

Bilenko, I. A. ^{[20
]}

Billingsley, G. ^{[1
]}

Birch, J. ^{[3
]}

Biswas, R. ^{[18
]}

Black, E. ^{[1
]}

机构：

[1] CALTECH, LIGO, Pasadena, CA 91125 USA

[2] Univ Glasgow, SUPA, Glasgow G12 8QQ, Lanark, Scotland

[3] Livingston Observ, LIGO, Livingston, LA 70754 USA

[4] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-30167 Hannover, Germany

[5] Univ Wisconsin, Milwaukee, WI 53201 USA

[6] Stanford Univ, Stanford, CA 94305 USA

[7] Hanford Observ, LIGO, Richland, WA 99352 USA

[8] Univ Florida, Gainesville, FL 32611 USA

[9] Louisiana State Univ, Baton Rouge, LA 70803 USA

[10] Univ Birmingham, Birmingham B15 2TT, W Midlands, England

[11] Leibniz Univ Hannover, D-30167 Hannover, Germany

[12] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-14476 Golm, Germany

[13] Montana State Univ, Bozeman, MT 59717 USA

[14] Carleton Coll, Northfield, MN 55057 USA

[15] MIT, LIGO, Cambridge, MA 02139 USA

[16] Univ Western Australia, Crawley, WA 6009, Australia

[17] Columbia Univ, New York, NY 10027 USA

[18] Univ Texas Brownsville & Texas Southmost Coll, Brownsville, TX 78520 USA

[19] San Jose State Univ, San Jose, CA 95192 USA

[20] Moscow MV Lomonosov State Univ, Moscow 119992, Russia

[21] Penn State Univ, University Pk, PA 16802 USA

[22] Washington State Univ, Pullman, WA 99164 USA

[23] CALTECH, CaRT, Pasadena, CA 91125 USA

[24] Univ Oregon, Eugene, OR 97403 USA

[25] Syracuse Univ, Syracuse, NY 13244 USA

[26] Rutherford Appleton Lab, HSIC, Didcot OX11 0QX, Oxon, England

[27] Univ Maryland, College Pk, MD 20742 USA

[28] Univ Massachusetts, Amherst, MA 01003 USA

[29] Univ Mississippi, University, MS 38677 USA

[30] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[31] Tsinghua Univ, Beijing 100084, Peoples R China

[32] Univ Michigan, Ann Arbor, MI 48109 USA

[33] Charles Sturt Univ, Wagga Wagga, NSW 2678, Australia

[34] Australian Natl Univ, Canberra, ACT 0200, Australia

[35] Univ Melbourne, Parkville, Vic 3010, Australia

[36] Cardiff Univ, Cardiff CF24 3AA, S Glam, Wales

[37] Univ Salerno, I-84084 Salerno, Italy

[38] INFN, Naples, Italy

[39] Univ Sheffield, Sheffield S10 2TN, S Yorkshire, England

[40] Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India

[41] Southern Univ, Baton Rouge, LA 70813 USA

[42] A&M Coll, Baton Rouge, LA USA

[43] Univ Minnesota, Minneapolis, MN 55455 USA

[44] CALTECH, Pasadena, CA 91125 USA

[45] Northwestern Univ, Evanston, IL 60208 USA

[46] Univ Texas Austin, Austin, TX 78712 USA

[47] Eotvos Lorand Univ, H-1117 Budapest, Hungary

[48] Embry Riddle Aeronaut Univ, Prescott, AZ 86301 USA

[49] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[50] Univ Adelaide, Adelaide, SA 5005, Australia

来源：

NATURE PHYSICS | 2011年 / 7卷 / 12期

基金：

澳大利亚研究理事会; 美国国家科学基金会; 英国科学技术设施理事会; 美国国家航空航天局;

关键词：

SQUEEZED STATES;

D O I：

10.1038/NPHYS2083

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Around the globe several observatories are seeking the first direct detection of gravitational waves (GWs). These waves are predicted by Einstein's general theory of relativity(1) and are generated, for example, by black-hole binary systems(2). Present GW detectors are Michelson-type kilometre-scale laser interferometers measuring the distance changes between mirrors suspended in vacuum. The sensitivity of these detectors at frequencies above several hundred hertz is limited by the vacuum (zero-point) fluctuations of the electromagnetic field. A quantum technology-the injection of squeezed light(3)-offers a solution to this problem. Here we demonstrate the squeezed-light enhancement of GEO 600, which will be the GW observatory operated by the LIGO Scientific Collaboration in its search for GWs for the next 3-4 years. GEO 600 now operates with its best ever sensitivity, which proves the usefulness of quantum entanglement and the qualification of squeezed light as a key technology for future GW astronomy(4).

引用

页码：962 / 965

页数：4

共 30 条

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