Approaching the motional ground state of a 10-kg object

doi:10.1126/science.abh2634

GSTDTAP > 气候变化

DOI	10.1126/science.abh2634
	Approaching the motional ground state of a 10-kg object
	Chris Whittle; Evan D. Hall; Sheila Dwyer; Nergis Mavalvala; Vivishek Sudhir; R. Abbott; A. Ananyeva; C. Austin; L. Barsotti; J. Betzwieser; C. D. Blair; A. F. Brooks; D. D. Brown; A. Buikema; C. Cahillane; J. C. Driggers; A. Effler; A. Fernandez-Galiana; P. Fritschel; V. V. Frolov; T. Hardwick; M. Kasprzack; K. Kawabe; N. Kijbunchoo; J. S. Kissel; G. L. Mansell; F. Matichard; L. McCuller; T. McRae; A. Mullavey; A. Pele; R. M. S. Schofield; D. Sigg; M. Tse; G. Vajente; D. C. Vander-Hyde; Hang Yu; Haocun Yu; C. Adams; R. X. Adhikari; S. Appert; K. Arai; J. S. Areeda; Y. Asali; S. M. Aston; A. M. Baer; M. Ball; S. W. Ballmer; S. Banagiri; D. Barker; J. Bartlett; B. K. Berger; D. Bhattacharjee; G. Billingsley; S. Biscans; R. M. Blair; N. Bode; P. Booker; R. Bork; A. Bramley; K. C. Cannon; X. Chen; A. A. Ciobanu; F. Clara; C. M. Compton; S. J. Cooper; K. R. Corley; S. T. Countryman; P. B. Covas; D. C. Coyne; L. E. H. Datrier; D. Davis; C. Di Fronzo; K. L. Dooley; P. Dupej; T. Etzel; M. Evans; T. M. Evans; J. Feicht; P. Fulda; M. Fyffe; J. A. Giaime; K. D. Giardina; P. Godwin; E. Goetz; S. Gras; C. Gray; R. Gray; A. C. Green; E. K. Gustafson; R. Gustafson; J. Hanks; J. Hanson; R. K. Hasskew; M. C. Heintze; A. F. Helmling-Cornell; N. A. Holland; J. D. Jones; S. Kandhasamy; S. Karki; P. J. King; Rahul Kumar; M. Landry; B. B. Lane; B. Lantz; M. Laxen; Y. K. Lecoeuche; J. Leviton; J. Liu; M. Lormand; A. P. Lundgren; R. Macas; M. MacInnis; D. M. Macleod; S. Márka; Z. Márka; D. V. Martynov; K. Mason; T. J. Massinger; R. McCarthy; D. E. McClelland; S. McCormick; J. McIver; G. Mendell; K. Merfeld; E. L. Merilh; F. Meylahn; T. Mistry; R. Mittleman; G. Moreno; C. M. Mow-Lowry; S. Mozzon; T. J. N. Nelson; P. Nguyen; L. K. Nuttall; J. Oberling; Richard J. Oram; C. Osthelder; D. J. Ottaway; H. Overmier; J. R. Palamos; W. Parker; E. Payne; R. Penhorwood; C. J. Perez; M. Pirello; H. Radkins; K. E. Ramirez; J. W. Richardson; K. Riles; N. A. Robertson; J. G. Rollins; C. L. Romel; J. H. Romie; M. P. Ross; K. Ryan; T. Sadecki; E. J. Sanchez; L. E. Sanchez; T. R. Saravanan; R. L. Savage; D. Schaetz; R. Schnabel; E. Schwartz; D. Sellers; T. Shaffer; B. J. J. Slagmolen; J. R. Smith; S. Soni; B. Sorazu; A. P. Spencer; K. A. Strain; L. Sun; M. J. Szczepańczyk; M. Thomas; P. Thomas; K. A. Thorne; K. Toland; C. I. Torrie; G. Traylor; A. L. Urban; G. Valdes; P. J. Veitch; K. Venkateswara; G. Venugopalan; A. D. Viets; T. Vo; C. Vorvick; M. Wade; R. L. Ward; J. Warner; B. Weaver; R. Weiss; B. Willke; C. C. Wipf; L. Xiao; H. Yamamoto; L. Zhang; M. E. Zucker; J. Zweizig
	2021-06-18
发表期刊	Science
出版年	2021
英文摘要	Cooling objects to low temperature can increase the sensitivity of sensors and the operational performance of most devices. Removing most of the thermal vibrations—or phonons—such that the object reaches its motional quantum ground state has been achieved but typically with tiny, nanoscale objects. Using the suspended mirrors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) that form a 10-kg optomechanical oscillator, Whittle et al. demonstrate the ability to cool such a large-scale object to nearly the motional ground state. An upgrade to LIGO with such a modification could increase its sensitivity and range to gravitational waves but also extend studies of quantum mechanics to large-scale objects. Science , abh2634, this issue p. [1333][1] The motion of a mechanical object, even a human-sized object, should be governed by the rules of quantum mechanics. Coaxing them into a quantum state is, however, difficult because the thermal environment masks any quantum signature of the object’s motion. The thermal environment also masks the effects of proposed modifications of quantum mechanics at large mass scales. We prepared the center-of-mass motion of a 10-kilogram mechanical oscillator in a state with an average phonon occupation of 10.8. The reduction in temperature, from room temperature to 77 nanokelvin, is commensurate with an 11 orders-of-magnitude suppression of quantum back-action by feedback and a 13 orders-of-magnitude increase in the mass of an object prepared close to its motional ground state. Our approach will enable the possibility of probing gravity on massive quantum systems. [1]: /lookup/doi/10.1126/science.abh2634
领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/330812
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Chris Whittle,Evan D. Hall,Sheila Dwyer,et al. Approaching the motional ground state of a 10-kg object[J]. Science,2021.
APA	Chris Whittle.,Evan D. Hall.,Sheila Dwyer.,Nergis Mavalvala.,Vivishek Sudhir.,...&J. Zweizig.(2021).Approaching the motional ground state of a 10-kg object.Science.
MLA	Chris Whittle,et al."Approaching the motional ground state of a 10-kg object".Science (2021).