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Quantum amplification of mechanical oscillator motion
Detection of the weakest forces in nature is aided by increasingly sensitive measurements of the motion of mechanical oscillators. However, the attainable knowledge of an oscillator’s motion is limited by quantum fluctuations that exist even if the oscillator is in its lowest possible energy state....
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| Published in: | Science (American Association for the Advancement of Science) 2019-06, Vol.364 (6446), p.1163-1165 |
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| Main Authors: | , , , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c454t-5cc962163a2252da587f3a92bf2887b65c5a275b29623e24776fbf691d0ffc593 |
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| cites | cdi_FETCH-LOGICAL-c454t-5cc962163a2252da587f3a92bf2887b65c5a275b29623e24776fbf691d0ffc593 |
| container_end_page | 1165 |
| container_issue | 6446 |
| container_start_page | 1163 |
| container_title | Science (American Association for the Advancement of Science) |
| container_volume | 364 |
| creator | Burd, S. C. Srinivas, R. Bollinger, J. J. Wilson, A. C. Wineland, D. J. Leibfried, D. Slichter, D. H. Allcock, D. T. C. |
| description | Detection of the weakest forces in nature is aided by increasingly sensitive measurements of the motion of mechanical oscillators. However, the attainable knowledge of an oscillator’s motion is limited by quantum fluctuations that exist even if the oscillator is in its lowest possible energy state. We demonstrate a technique for amplifying coherent displacements of a mechanical oscillator with initial magnitudes well below these zero-point fluctuations. When applying two orthogonal squeezing interactions, one before and one after a small displacement, the displacement is amplified, ideally with no added quantum noise. We implemented this protocol with a trapped-ion mechanical oscillator and determined an increase by a factor of up to 7.3 (±0.3) in sensitivity to small displacements. |
| doi_str_mv | 10.1126/science.aaw2884 |
| format | article |
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C. ; Srinivas, R. ; Bollinger, J. J. ; Wilson, A. C. ; Wineland, D. J. ; Leibfried, D. ; Slichter, D. H. ; Allcock, D. T. C.</creator><creatorcontrib>Burd, S. C. ; Srinivas, R. ; Bollinger, J. J. ; Wilson, A. C. ; Wineland, D. J. ; Leibfried, D. ; Slichter, D. H. ; Allcock, D. T. C.</creatorcontrib><description>Detection of the weakest forces in nature is aided by increasingly sensitive measurements of the motion of mechanical oscillators. However, the attainable knowledge of an oscillator’s motion is limited by quantum fluctuations that exist even if the oscillator is in its lowest possible energy state. We demonstrate a technique for amplifying coherent displacements of a mechanical oscillator with initial magnitudes well below these zero-point fluctuations. When applying two orthogonal squeezing interactions, one before and one after a small displacement, the displacement is amplified, ideally with no added quantum noise. We implemented this protocol with a trapped-ion mechanical oscillator and determined an increase by a factor of up to 7.3 (±0.3) in sensitivity to small displacements.</description><identifier>ISSN: 0036-8075</identifier><identifier>ISSN: 1095-9203</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.aaw2884</identifier><identifier>PMID: 31221854</identifier><language>eng</language><publisher>United States: American Association for the Advancement of Science</publisher><subject>Amplification ; Compressing ; Displacement ; Fluctuations ; Mechanical oscillators ; Motion ; Oscillators ; Position measurement</subject><ispartof>Science (American Association for the Advancement of Science), 2019-06, Vol.364 (6446), p.1163-1165</ispartof><rights>Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. 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We implemented this protocol with a trapped-ion mechanical oscillator and determined an increase by a factor of up to 7.3 (±0.3) in sensitivity to small displacements.</description><subject>Amplification</subject><subject>Compressing</subject><subject>Displacement</subject><subject>Fluctuations</subject><subject>Mechanical oscillators</subject><subject>Motion</subject><subject>Oscillators</subject><subject>Position measurement</subject><issn>0036-8075</issn><issn>1095-9203</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpdkM1LwzAYh4Mobk7PnpSCFy_dkjefPcrwCwYi6DmkWYIdbTObFvG_X8bqDp5eyO_J-_54ELomeE4IiEW0lWutmxvzA0qxEzQluOB5AZieoinGVOQKSz5BFzFuME5ZQc_RhBIAojibIv4-mLYfmsw027rylTV9Fdos-Kxx9su06aHOQjpT16YPXdaEfX6Jzrypo7sa5wx9Pj1-LF_y1dvz6_JhlVvGWZ9zawsBRFADwGFtuJKemgJKn8rKUnDLDUheQqKoAyal8KUXBVlj722qOkP3h73bLnwPLva6qaJ1qUvrwhA1AOMCS1bQhN79Qzdh6NrULlFcAijJeKIWB8p2IcbOeb3tqsZ0v5pgvTeqR6N6NJp-3I57h7Jx6yP_pzABNwdgE5OgYw5CKCKYoDur33wK</recordid><startdate>20190621</startdate><enddate>20190621</enddate><creator>Burd, S. 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| fulltext | fulltext |
| identifier | ISSN: 0036-8075 |
| ispartof | Science (American Association for the Advancement of Science), 2019-06, Vol.364 (6446), p.1163-1165 |
| issn | 0036-8075 1095-9203 1095-9203 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2245607493 |
| source | American Association for the Advancement of Science; Alma/SFX Local Collection |
| subjects | Amplification Compressing Displacement Fluctuations Mechanical oscillators Motion Oscillators Position measurement |
| title | Quantum amplification of mechanical oscillator motion |
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