Environment-assisted Quantum-enhanced Sensing with Electronic Spins in Diamond
The performance of solid-state quantum sensors based on electronic spin defects is often limited by the presence of environmental spin impurities that cause decoherence. A promising approach to improve these quantum sensors is to convert environment spins into useful resources for sensing, in partic...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society (APS)
2020
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| Online Access: | https://hdl.handle.net/1721.1/124886 |
| _version_ | 1826212130253176832 |
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| author | Cooper, Alexandre Sun, Won Kyu Calvin Jaskula, Jean-Christophe Cappellaro, Paola |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Cooper, Alexandre Sun, Won Kyu Calvin Jaskula, Jean-Christophe Cappellaro, Paola |
| author_sort | Cooper, Alexandre |
| collection | MIT |
| description | The performance of solid-state quantum sensors based on electronic spin defects is often limited by the presence of environmental spin impurities that cause decoherence. A promising approach to improve these quantum sensors is to convert environment spins into useful resources for sensing, in particular, entangled states. However, the sensitivity enhancement that can be achieved from entangled states is limited by experimental constraints, such as control errors, decoherence, and time overheads. Here we experimentally demonstrate the efficient use of an unknown electronic spin defect in the proximity of a nitrogen-vacancy center in diamond to achieve both an entangled quantum sensor and a quantum memory for readout. We show that, whereas entanglement alone does not provide an enhancement in sensitivity, combining both entanglement and repetitive readout achieves an enhancement in performance over the use of a single-spin sensor, and more broadly we discuss regimes where sensitivity could be enhanced. Our results critically highlight the challenges in improving quantum sensors using entangled states of electronic spins, while providing an important benchmark in the quest for entanglement-assisted metrology. |
| first_indexed | 2024-09-23T15:16:32Z |
| format | Article |
| id | mit-1721.1/124886 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:16:32Z |
| publishDate | 2020 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1248862022-10-02T01:53:08Z Environment-assisted Quantum-enhanced Sensing with Electronic Spins in Diamond Cooper, Alexandre Sun, Won Kyu Calvin Jaskula, Jean-Christophe Cappellaro, Paola Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Massachusetts Institute of Technology. Research Laboratory of Electronics The performance of solid-state quantum sensors based on electronic spin defects is often limited by the presence of environmental spin impurities that cause decoherence. A promising approach to improve these quantum sensors is to convert environment spins into useful resources for sensing, in particular, entangled states. However, the sensitivity enhancement that can be achieved from entangled states is limited by experimental constraints, such as control errors, decoherence, and time overheads. Here we experimentally demonstrate the efficient use of an unknown electronic spin defect in the proximity of a nitrogen-vacancy center in diamond to achieve both an entangled quantum sensor and a quantum memory for readout. We show that, whereas entanglement alone does not provide an enhancement in sensitivity, combining both entanglement and repetitive readout achieves an enhancement in performance over the use of a single-spin sensor, and more broadly we discuss regimes where sensitivity could be enhanced. Our results critically highlight the challenges in improving quantum sensors using entangled states of electronic spins, while providing an important benchmark in the quest for entanglement-assisted metrology. National Science Foundation (U.S.) (PHY1415345) National Science Foundation (U.S.) (EECS1702716) 2020-04-27T18:03:07Z 2020-04-27T18:03:07Z 2019-10 2019-06 2020-02-20T18:11:41Z Article http://purl.org/eprint/type/JournalArticle 2331-7019 https://hdl.handle.net/1721.1/124886 Cooper, Alexandre, et al. “Environment-Assisted Quantum-Enhanced Sensing with Electronic Spins in Diamond.” Physical Review Applied 12, 4 (October 2019): 044047. © 2019 American Physical Society. en http://dx.doi.org/10.1103/PHYSREVAPPLIED.12.044047 Physical Review Applied Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Cooper, Alexandre Sun, Won Kyu Calvin Jaskula, Jean-Christophe Cappellaro, Paola Environment-assisted Quantum-enhanced Sensing with Electronic Spins in Diamond |
| title | Environment-assisted Quantum-enhanced Sensing with Electronic Spins in Diamond |
| title_full | Environment-assisted Quantum-enhanced Sensing with Electronic Spins in Diamond |
| title_fullStr | Environment-assisted Quantum-enhanced Sensing with Electronic Spins in Diamond |
| title_full_unstemmed | Environment-assisted Quantum-enhanced Sensing with Electronic Spins in Diamond |
| title_short | Environment-assisted Quantum-enhanced Sensing with Electronic Spins in Diamond |
| title_sort | environment assisted quantum enhanced sensing with electronic spins in diamond |
| url | https://hdl.handle.net/1721.1/124886 |
| work_keys_str_mv | AT cooperalexandre environmentassistedquantumenhancedsensingwithelectronicspinsindiamond AT sunwonkyucalvin environmentassistedquantumenhancedsensingwithelectronicspinsindiamond AT jaskulajeanchristophe environmentassistedquantumenhancedsensingwithelectronicspinsindiamond AT cappellaropaola environmentassistedquantumenhancedsensingwithelectronicspinsindiamond |