Quantum backaction evading measurements of a silicon nitride membrane resonator
Quantum backaction disturbs the measurement of the position of a mechanical oscillator by introducing additional fluctuations. In a quantum backaction measurement technique, the backaction can be evaded, although at the cost of losing part of the information. In this work, we carry out such a quantu...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ac88ef |
| _version_ | 1797748414474092544 |
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| author | Yulong Liu Jingwei Zhou Laure Mercier de Lépinay Mika A Sillanpää |
| author_facet | Yulong Liu Jingwei Zhou Laure Mercier de Lépinay Mika A Sillanpää |
| author_sort | Yulong Liu |
| collection | DOAJ |
| description | Quantum backaction disturbs the measurement of the position of a mechanical oscillator by introducing additional fluctuations. In a quantum backaction measurement technique, the backaction can be evaded, although at the cost of losing part of the information. In this work, we carry out such a quantum backaction measurement using a large 0.5 mm diameter silicon nitride membrane oscillator with 707 kHz frequency, via a microwave cavity readout. The measurement shows that quantum backaction noise can be evaded in the quadrature measurement of the motion of a large object. |
| first_indexed | 2024-03-12T16:05:24Z |
| format | Article |
| id | doaj.art-39dd9253d8ca4768be4f3c11472f12f8 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:05:24Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-39dd9253d8ca4768be4f3c11472f12f82023-08-09T14:23:09ZengIOP PublishingNew Journal of Physics1367-26302022-01-0124808304310.1088/1367-2630/ac88efQuantum backaction evading measurements of a silicon nitride membrane resonatorYulong Liu0Jingwei Zhou1Laure Mercier de Lépinay2https://orcid.org/0000-0001-9938-5825Mika A Sillanpää3https://orcid.org/0000-0003-4061-3015Beijing Academy of Quantum Information Sciences , Beijing 100193, People’s Republic of China; Department of Applied Physics, Aalto University , PO Box 15100, FI-00076 AALTO, FinlandQTF Centre of Excellence, Department of Applied Physics, Aalto University , FI-00076 Aalto, FinlandQTF Centre of Excellence, Department of Applied Physics, Aalto University , FI-00076 Aalto, FinlandQTF Centre of Excellence, Department of Applied Physics, Aalto University , FI-00076 Aalto, FinlandQuantum backaction disturbs the measurement of the position of a mechanical oscillator by introducing additional fluctuations. In a quantum backaction measurement technique, the backaction can be evaded, although at the cost of losing part of the information. In this work, we carry out such a quantum backaction measurement using a large 0.5 mm diameter silicon nitride membrane oscillator with 707 kHz frequency, via a microwave cavity readout. The measurement shows that quantum backaction noise can be evaded in the quadrature measurement of the motion of a large object.https://doi.org/10.1088/1367-2630/ac88efoptomechanicsquantum measurementmicromechanics |
| spellingShingle | Yulong Liu Jingwei Zhou Laure Mercier de Lépinay Mika A Sillanpää Quantum backaction evading measurements of a silicon nitride membrane resonator New Journal of Physics optomechanics quantum measurement micromechanics |
| title | Quantum backaction evading measurements of a silicon nitride membrane resonator |
| title_full | Quantum backaction evading measurements of a silicon nitride membrane resonator |
| title_fullStr | Quantum backaction evading measurements of a silicon nitride membrane resonator |
| title_full_unstemmed | Quantum backaction evading measurements of a silicon nitride membrane resonator |
| title_short | Quantum backaction evading measurements of a silicon nitride membrane resonator |
| title_sort | quantum backaction evading measurements of a silicon nitride membrane resonator |
| topic | optomechanics quantum measurement micromechanics |
| url | https://doi.org/10.1088/1367-2630/ac88ef |
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