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Approaching the motional ground state of a 10-kg object

Author(s)
Whittle, Chris; Hall, Evan D.; Dwyer, Sheila; Mavalvala, Nergis; Sudhir, Vivishek; Abbott, R.; Ananyeva, A.; Austin, C.; Barsotti, L.; Betzwieser, J.; Blair, C. D.; Brooks, A. F.; Brown, D. D.; Buikema, A.; Cahillane, C.; Driggers, J. C.; Effler, A.; Fernandez-Galiana, A.; Fritschel, P.; Frolov, V. V.; Hardwick, T.; Kasprzack, M.; Kawabe, K.; Kijbunchoo, N.; Kissel, J. S.; Mansell, G. L.; Matichard, F.; McCuller, L.; McRae, T.; Mullavey, A.; Pele, A.; Schofield, R. M. S.; Sigg, D.; Tse, M.; Vajente, G.; Vander-Hyde, D. C.; Yu, Hang; Yu, Haocun; Adams, C.; Adhikari, R. X.; Appert, S.; Arai, K.; Areeda, J. S.; Asali, Y.; Aston, S. M.; Baer, A. M.; Ball, M.; Ballmer, S. W.; Banagiri, S.; Barker, D.; Bartlett, J.; Berger, B. K.; Bhattacharjee, D.; Billingsley, G.; Biscans, S.; Blair, R. M.; Bode, N.; Booker, P.; Bork, R.; Bramley, A.; Cannon, K. C.; Chen, X.; Ciobanu, A. A.; Clara, F.; Compton, C. M.; Cooper, S. J.; Corley, K. R.; Countryman, S. T.; Covas, P. B.; Coyne, D. C.; Datrier, L. E. H.; Davis, D.; Di Fronzo, C.; Dooley, K. L.; Dupej, P.; Etzel, T.; Evans, M.; Evans, T. M.; Feicht, J.; Fulda, P.; Fyffe, M.; Giaime, J. A.; Giardina, K. D.; Godwin, P.; Goetz, E.; Gras, S.; Gray, C.; Gray, R.; Green, A. C.; Gustafson, E. K.; Gustafson, R.; Hanks, J.; Hanson, J.; Hasskew, R. K.; Heintze, M. C.; Helmling-Cornell, A. F.; Holland, N. A.; Jones, J. D.; Kandhasamy, S.; Karki, S.; King, P. J.; Kumar, Rahul; Landry, M.; Lane, B. B.; Lantz, B.; Laxen, M.; Lecoeuche, Y. K.; Leviton, J.; Liu, J.; Lormand, M.; Lundgren, A. P.; Macas, R.; MacInnis, M.; Macleod, D. M.; Márka, S.; Márka, Z.; Martynov, D. V.; Mason, K.; Massinger, T. J.; McCarthy, R.; McClelland, D. E.; McCormick, S.; McIver, J.; Mendell, G.; Merfeld, K.; Merilh, E. L.; Meylahn, F.; Mistry, T.; Mittleman, R.; Moreno, G.; Mow-Lowry, C. M.; Mozzon, S.; Nelson, T. J. N.; Nguyen, P.; Nuttall, L. K.; Oberling, J.; Oram, Richard J.; Osthelder, C.; Ottaway, D. J.; Overmier, H.; Palamos, J. R.; Parker, W.; Payne, E.; Penhorwood, R.; Perez, C. J.; Pirello, M.; Radkins, H.; Ramirez, K. E.; Richardson, J. W.; Riles, K.; Robertson, N. A.; Rollins, J. G.; Romel, C. L.; Romie, J. H.; Ross, M. P.; Ryan, K.; Sadecki, T.; Sanchez, E. J.; Sanchez, L. E.; Saravanan, T. R.; Savage, R. L.; Schaetz, D.; Schnabel, R.; Schwartz, E.; Sellers, D.; Shaffer, T.; Slagmolen, B. J. J.; Smith, J. R.; Soni, S.; Sorazu, B.; Spencer, A. P.; Strain, K. A.; Sun, L.; Szczepańczyk, M. J.; Thomas, M.; Thomas, P.; Thorne, K. A.; Toland, K.; Torrie, C. I.; Traylor, G.; Urban, A. L.; Valdes, G.; Veitch, P. J.; Venkateswara, K.; Venugopalan, G.; Viets, A. D.; Vo, T.; Vorvick, C.; Wade, M.; Ward, R. L.; Warner, J.; Weaver, B.; Weiss, R.; Willke, B.; Wipf, C. C.; Xiao, L.; Yamamoto, H.; Zhang, L.; Zucker, M. E.; Zweizig, J.; ... Show more Show less
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Abstract
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.
Date issued
2021-06-18
URI
https://hdl.handle.net/1721.1/139727
Department
LIGO (Observatory : Massachusetts Institute of Technology); Massachusetts Institute of Technology. Department of Mechanical Engineering
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Whittle, Chris, Hall, Evan D., Dwyer, Sheila, Mavalvala, Nergis, Sudhir, Vivishek et al. 2021. "Approaching the motional ground state of a 10-kg object." Science, 372 (6548).
Version: Author's final manuscript
ISSN
0036-8075
1095-9203

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