Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aag1407 |
Quantum correlations from a room-temperature optomechanical cavity | |
Purdy, T. P.1; Grutter, K. E.2,4; Srinivasan, K.2; Taylor, J. M.1,3 | |
2017-06-23 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 356期号:6344页码:1265-1268 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The act of position measurement alters the motion of an object being measured. This quantum measurement backaction is typically much smaller than the thermal motion of a room-temperature object and thus difficult to observe. By shining laser light through a nanomechanical beam, we measure the beam's thermally driven vibrations and perturb its motion with optical force fluctuations at a level dictated by the Heisenberg measurement-disturbance uncertainty relation. We demonstrate a cross-correlation technique to distinguish optically driven motion from thermally driven motion, observing this quantum backaction signature up to room temperature. We use the scale of the quantum correlations, which is determined by fundamental constants, to gauge the size of thermal motion, demonstrating a path toward absolute thermometry with quantum mechanically calibrated ticks. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403881700035 |
WOS关键词 | MECHANICAL OSCILLATOR ; SHOT-NOISE ; THERMOMETRY ; LIGHT |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196324 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA; 2.NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA; 3.Univ Maryland, Joint Ctr Quantum Informat & Comp Sci, College Pk, MD 20742 USA; 4.Lab Phys Sci, College Pk, MD 20740 USA |
推荐引用方式 GB/T 7714 | Purdy, T. P.,Grutter, K. E.,Srinivasan, K.,et al. Quantum correlations from a room-temperature optomechanical cavity[J]. SCIENCE,2017,356(6344):1265-1268. |
APA | Purdy, T. P.,Grutter, K. E.,Srinivasan, K.,&Taylor, J. M..(2017).Quantum correlations from a room-temperature optomechanical cavity.SCIENCE,356(6344),1265-1268. |
MLA | Purdy, T. P.,et al."Quantum correlations from a room-temperature optomechanical cavity".SCIENCE 356.6344(2017):1265-1268. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论