Spin squeezing enhanced quantum magnetometry with nitrogen-vacancy center qutrits
We explore the utility of quantum spin squeezing in quantum magnetometry, focusing on three-level (qutrit) Nitrogen-Vacancy (NV) centers within diamond, utilizing a standard Ramsey interferometry pulse protocol. Our investigation incorporates the effects of dephasing and relaxation on NV centers’ dy...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/adf87b |
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| author | Lea Gassab Özgür E Müstecaplıoğlu |
| author_facet | Lea Gassab Özgür E Müstecaplıoğlu |
| author_sort | Lea Gassab |
| collection | DOAJ |
| description | We explore the utility of quantum spin squeezing in quantum magnetometry, focusing on three-level (qutrit) Nitrogen-Vacancy (NV) centers within diamond, utilizing a standard Ramsey interferometry pulse protocol. Our investigation incorporates the effects of dephasing and relaxation on NV centers’ dynamics during Ramsey measurements, modeled via the Lindblad quantum master equation. We conduct a comparative analysis between the metrological capabilities of a single NV center and a pair of NV centers, considering quantum Fisher information both with and without spin squeezing. The quantum correlations between NV centers are assessed through the evaluation of the Kitagawa–Ueda spin squeezing parameter within a two-level manifold. Additionally, parallel calculations are conducted using a two-level model (qubit) for NV centers. Our findings reveal that leveraging qutrits and spin squeezing yields enhanced magnetometric precision, albeit constrained by dephasing effects. Nevertheless, even in the absence of dynamical decoupling methods to mitigate environmental dissipation, strategic timing of squeezing and free evolution can sustain the advantages of qutrit-based magnetometry. |
| format | Article |
| id | doaj-art-571809e2b65d43e687e6b38f97a64793 |
| institution | DOAJ |
| issn | 1367-2630 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj-art-571809e2b65d43e687e6b38f97a647932025-08-20T03:02:52ZengIOP PublishingNew Journal of Physics1367-26302025-01-0127808450210.1088/1367-2630/adf87bSpin squeezing enhanced quantum magnetometry with nitrogen-vacancy center qutritsLea Gassab0https://orcid.org/0000-0001-9961-0658Özgür E Müstecaplıoğlu1https://orcid.org/0000-0002-9134-3951Department of Physics, Koç University , Istanbul 34450, Türkiye; Departments of Biology, Physics & Astronomy, Waterloo Institute for Nanotechnology, University of Waterloo , Waterloo, ON N2L 3G1, CanadaDepartment of Physics, Koç University , Istanbul 34450, Türkiye; TÜBİTAK Research Institute for Fundamental Sciences , Gebze 41470, Türkiye; Faculty of Engineering and Natural Sciences, Sabancı University , Istanbul 34956, TürkiyeWe explore the utility of quantum spin squeezing in quantum magnetometry, focusing on three-level (qutrit) Nitrogen-Vacancy (NV) centers within diamond, utilizing a standard Ramsey interferometry pulse protocol. Our investigation incorporates the effects of dephasing and relaxation on NV centers’ dynamics during Ramsey measurements, modeled via the Lindblad quantum master equation. We conduct a comparative analysis between the metrological capabilities of a single NV center and a pair of NV centers, considering quantum Fisher information both with and without spin squeezing. The quantum correlations between NV centers are assessed through the evaluation of the Kitagawa–Ueda spin squeezing parameter within a two-level manifold. Additionally, parallel calculations are conducted using a two-level model (qubit) for NV centers. Our findings reveal that leveraging qutrits and spin squeezing yields enhanced magnetometric precision, albeit constrained by dephasing effects. Nevertheless, even in the absence of dynamical decoupling methods to mitigate environmental dissipation, strategic timing of squeezing and free evolution can sustain the advantages of qutrit-based magnetometry.https://doi.org/10.1088/1367-2630/adf87bquantum sensingmagnetometryquantum metrologynitrogen-vacancy centersqutrits |
| spellingShingle | Lea Gassab Özgür E Müstecaplıoğlu Spin squeezing enhanced quantum magnetometry with nitrogen-vacancy center qutrits New Journal of Physics quantum sensing magnetometry quantum metrology nitrogen-vacancy centers qutrits |
| title | Spin squeezing enhanced quantum magnetometry with nitrogen-vacancy center qutrits |
| title_full | Spin squeezing enhanced quantum magnetometry with nitrogen-vacancy center qutrits |
| title_fullStr | Spin squeezing enhanced quantum magnetometry with nitrogen-vacancy center qutrits |
| title_full_unstemmed | Spin squeezing enhanced quantum magnetometry with nitrogen-vacancy center qutrits |
| title_short | Spin squeezing enhanced quantum magnetometry with nitrogen-vacancy center qutrits |
| title_sort | spin squeezing enhanced quantum magnetometry with nitrogen vacancy center qutrits |
| topic | quantum sensing magnetometry quantum metrology nitrogen-vacancy centers qutrits |
| url | https://doi.org/10.1088/1367-2630/adf87b |
| work_keys_str_mv | AT leagassab spinsqueezingenhancedquantummagnetometrywithnitrogenvacancycenterqutrits AT ozguremustecaplıoglu spinsqueezingenhancedquantummagnetometrywithnitrogenvacancycenterqutrits |