LIGO 光与千克级质量镜面间的量子关联
量子物理
2020-09-01 v1 天体物理仪器与方法
摘要
以不断提高的精度测量微小力与位移会遇到量子力学支柱所施加的极限：海森堡不确定性原理。对物体位置可连续测量精度的极限称为标准量子极限（SQL）。当使用光作为探针时，SQL 源于施加在物体上的光子辐射压力的不确定性与光电探测中光子数的不确定性之间的平衡。超越 SQL 的唯一可能途径是通过物体位置/动量不确定性与它所反射光的光子数/相位不确定性之间的关联。在此，我们通过实验证明了这一理论预言：此类量子关联在激光干涉引力波天文台（LIGO）中自然产生。我们的测量表明，Advanced LIGO 探测器的 200 kW 激光束的相位与 40 kg 镜面位置中的量子力学不确定性产生了低于 SQL 因子 1.4（3dB）的联合量子不确定性。我们预期量子关联不仅将改善引力波（GW）天文台，也将改善未来所有类型的测量。
引用
@article{arxiv.2002.01519,
title = {Quantum correlations between the light and kilogram-mass mirrors of LIGO},
author = {Haocun Yu and L. McCuller and M. Tse and L. Barsotti and N. Mavalvala and J. Betzwieser and C. D. Blair and S. E. Dwyer and A. Effler and M. Evans and A. Fernandez-Galiana and P. Fritschel and V. V. Frolov and N. Kijbunchoo and F. Matichard and D. E. McClelland and T. McRae and A. Mullavey and D. Sigg and B. J. J. Slagmolen and C. Whittle and A. Buikema and Y. Chen and T. R. Corbitt and R. Schnabel and R. Abbott and C. Adams and R. X. Adhikari and A. Ananyeva and S. Appert and K. Arai and J. S. Areeda and Y. Asali and S. M. Aston and C. Austin and A. M. Baer and M. Ball and S. W. Ballmer and S. Banagiri and D. Barker and J. Bartlett and B. K. Berger and D. Bhattacharjee and G. Billingsley and S. Biscans and R. M. Blair and N. Bode and P. Booker and R. Bork and A. Bramley and A. F. Brooks and D. D. Brown and C. Cahillane and K. C. Cannon and X. Chen and A. A. Ciobanu and F. Clara and S. J. Cooper and K. R. Corley and S. T. Countryman and P. B. Covas and D. C. Coyne and L. E. H. Datrier and D. Davis and C. Di Fronzo and K. L. Dooley and J. C. Driggers and P. Dupej and T. Etzel and T. M. Evans and J. Feicht and P. Fulda and M. Fyffe and J. A. Giaime and K. D. Giardina and P. Godwin and E. Goetz and S. Gras and C. Gray and R. Gray and A. C. Green and Anchal Gupta and E. K. Gustafson and R. Gustafson and J. Hanks and J. Hanson and T. Hardwick and R. K. Hasskew and M. C. Heintze and A. F. Helmling-Cornell and N. A. Holland and J. D. Jones and S. Kandhasamy and S. Karki and M. Kasprzack and K. Kawabe and P. J. King and J. S. Kissel and Rahul Kumar and M. Landry and B. B. Lane and B. Lantz and M. Laxen and Y. K. Lecoeuche and J. Leviton and J. Liu and M. Lormand and A. P. Lundgren and R. Macas and M. MacInnis and D. M. Macleod and G. L. Mansell and S. Márka and Z. Márka and D. V. Martynov and K. Mason and T. J. Massinger and R. McCarthy and S. McCormick and J. McIver and G. Mendell and K. Merfeld and E. L. Merilh and F. Meylahn and T. Mistry and R. Mittleman and G. Moreno and C. M. Mow-Lowry and S. Mozzon and T. J. N. Nelson and P. Nguyen and L. K. Nuttall and J. Oberling and Richard J. Oram and C. Osthelder and D. J. Ottaway and H. Overmier and J. R. Palamos and W. Parker and E. Payne and A. Pele and C. J. Perez and M. Pirello and H. Radkins and K. E. Ramirez and J. W. Richardson and K. Riles and N. A. Robertson and J. G. Rollins and C. L. Romel and J. H. Romie and M. P. Ross and K. Ryan and T. Sadecki and E. J. Sanchez and L. E. Sanchez and T. R. Saravanan and R. L. Savage and D. Schaetzl and R. M. S. Schofield and E. Schwartz and D. Sellers and T. Shaffer and J. R. Smith and S. Soni and B. Sorazu and A. P. Spencer and K. A. Strain and L. Sun and M. J. Szczepańczyk and M. Thomas and P. Thomas and K. A. Thorne and K. Toland and C. I. Torrie and G. Traylor and A. L. Urban and G. Vajente and G. Valdes and D. C. Vander-Hyde and P. J. Veitch and K. Venkateswara and G. Venugopalan and A. D. Viets and T. Vo and C. Vorvick and M. Wade and R. L. Ward and J. Warner and B. Weaver and R. Weiss and B. Willke and C. C. Wipf and L. Xiao and H. Yamamoto and Hang Yu and L. Zhang and M. E. Zucker and J. Zweizig},
journal= {arXiv preprint arXiv:2002.01519},
year = {2020}
}