Measuring mechanical motion with a single spin
We study theoretically the measurement of a mechanical oscillator using a single two-level system as a detector. In a recent experiment, we used a single electronic spin associated with a nitrogen–vacancy center in diamond to probe the thermal motion of a magnetized cantilever at room temperature (K...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2012-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/14/12/125004 |
| _version_ | 1797751599636938752 |
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| author | S D Bennett S Kolkowitz Q P Unterreithmeier P Rabl A C Bleszynski Jayich J G E Harris M D Lukin |
| author_facet | S D Bennett S Kolkowitz Q P Unterreithmeier P Rabl A C Bleszynski Jayich J G E Harris M D Lukin |
| author_sort | S D Bennett |
| collection | DOAJ |
| description | We study theoretically the measurement of a mechanical oscillator using a single two-level system as a detector. In a recent experiment, we used a single electronic spin associated with a nitrogen–vacancy center in diamond to probe the thermal motion of a magnetized cantilever at room temperature (Kolkowitz et al 2012 Science 335 1603). Here, we present a detailed analysis of the sensitivity limits of this technique, as well as the possibility to measure the zero-point motion of the oscillator. Further, we discuss the issue of measurement backaction in sequential measurements and find that although backaction heating can occur, it does not prohibit the detection of zero-point motion. Throughout the paper, we focus on the experimental implementation of a nitrogen–vacancy center coupled to a magnetic cantilever; however, our results are applicable to a wide class of spin–oscillator systems. The implications for the preparation of nonclassical states of a mechanical oscillator are also discussed. |
| first_indexed | 2024-03-12T16:50:53Z |
| format | Article |
| id | doaj.art-b1b8901ed8df44d7bbc2f0431c41d38c |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:50:53Z |
| publishDate | 2012-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-b1b8901ed8df44d7bbc2f0431c41d38c2023-08-08T11:11:02ZengIOP PublishingNew Journal of Physics1367-26302012-01-01141212500410.1088/1367-2630/14/12/125004Measuring mechanical motion with a single spinS D Bennett0S Kolkowitz1Q P Unterreithmeier2P Rabl3A C Bleszynski Jayich4J G E Harris5M D Lukin6Department of Physics, Harvard University , Cambridge, MA 02138, USADepartment of Physics, Harvard University , Cambridge, MA 02138, USADepartment of Physics, Harvard University , Cambridge, MA 02138, USAInstitute for Quantum Optics and Quantum Information of the Austrian Academy of Science , A-6020 Innsbruck, AustriaDepartment of Physics, University of California Santa Barbara , Santa Barbara, CA 93106, USADepartments of Physics and Applied Physics, Yale University , New Haven, CT 06520, USADepartment of Physics, Harvard University , Cambridge, MA 02138, USAWe study theoretically the measurement of a mechanical oscillator using a single two-level system as a detector. In a recent experiment, we used a single electronic spin associated with a nitrogen–vacancy center in diamond to probe the thermal motion of a magnetized cantilever at room temperature (Kolkowitz et al 2012 Science 335 1603). Here, we present a detailed analysis of the sensitivity limits of this technique, as well as the possibility to measure the zero-point motion of the oscillator. Further, we discuss the issue of measurement backaction in sequential measurements and find that although backaction heating can occur, it does not prohibit the detection of zero-point motion. Throughout the paper, we focus on the experimental implementation of a nitrogen–vacancy center coupled to a magnetic cantilever; however, our results are applicable to a wide class of spin–oscillator systems. The implications for the preparation of nonclassical states of a mechanical oscillator are also discussed.https://doi.org/10.1088/1367-2630/14/12/125004 |
| spellingShingle | S D Bennett S Kolkowitz Q P Unterreithmeier P Rabl A C Bleszynski Jayich J G E Harris M D Lukin Measuring mechanical motion with a single spin New Journal of Physics |
| title | Measuring mechanical motion with a single spin |
| title_full | Measuring mechanical motion with a single spin |
| title_fullStr | Measuring mechanical motion with a single spin |
| title_full_unstemmed | Measuring mechanical motion with a single spin |
| title_short | Measuring mechanical motion with a single spin |
| title_sort | measuring mechanical motion with a single spin |
| url | https://doi.org/10.1088/1367-2630/14/12/125004 |
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