气候变化领域集成服务门户(CCPortal): Cooling of a levitated nanoparticle to the motional quantum ground state

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DOI	10.1126/science.aba3993
	Cooling of a levitated nanoparticle to the motional quantum ground state
	Delić U.; Reisenbauer M.; Dare K.; Grass D.; Vuletić V.; Kiesel N.; Aspelmeyer M.
发表日期	2020
ISSN	0036-8075
起始页码	892
结束页码	895
卷号	367 期号:6480
英文摘要	Quantum control of complex objects in the regime of large size and mass provides opportunities for sensing applications and tests of fundamental physics. The realization of such extreme quantum states of matter remains a major challenge. We demonstrate a quantum interface that combines optical trapping of solids with cavity-mediated light-matter interaction. Precise control over the frequency and position of the trap laser with respect to the optical cavity allowed us to laser-cool an optically trapped nanoparticle into its quantum ground state of motion from room temperature. The particle comprises 108 atoms, similar to current Bose-Einstein condensates, with the density of a solid object. Our cooling technique, in combination with optical trap manipulation, may enable otherwise unachievable superposition states involving large masses. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	nanoparticle control system cooling nanoparticle physics quantum mechanics accuracy Article molecular interaction motional quantum ground state particle size physical parameters priority journal quantum chemistry radiation field room temperature sensitivity analysis solid state thermometry
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133685
推荐引用方式 GB/T 7714	Delić U.,Reisenbauer M.,Dare K.,et al. Cooling of a levitated nanoparticle to the motional quantum ground state[J]. Science,2020,367(6480).
APA	Delić U..,Reisenbauer M..,Dare K..,Grass D..,Vuletić V..,...&Aspelmeyer M..(2020).Cooling of a levitated nanoparticle to the motional quantum ground state.,367(6480).
MLA	Delić U.,et al."Cooling of a levitated nanoparticle to the motional quantum ground state".367.6480(2020).