期刊
PHYSICAL REVIEW LETTERS
卷 127, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.127.147402
关键词
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资金
- European Union [840393]
- Army Research Laboratory ENIAC Distinguished Postdoctoral Fellowship
- National Science Foundation Graduate Research Fellowships Program (GRFP)
- NSF STC Center for Integrated Quantum Materials (CIQM)
- NSF [1839155, DMR-1231319]
- MITRE Quantum Moonshot Program
- Marie Curie Actions (MSCA) [840393] Funding Source: Marie Curie Actions (MSCA)
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1839155] Funding Source: National Science Foundation
This study experimentally quantifies the electric field dependence of individual tin-vacancy (SnV) centers in diamond and shows that their permanent electric dipole moment and polarizability are at least 4 orders of magnitude smaller than for the diamond nitrogen vacancy (NV) centers. Additionally, the researchers demonstrate that by modulating the electric-field-induced dipole, SnV can be used as a nanoscale probe of local electric field noise, highlighting the effect of spectral diffusion on SnV.
Quantum emitters in diamond are leading optically accessible solid-state qubits. Among these, Group IV-vacancy defect centers have attracted great interest as coherent and stable optical interfaces to long-lived spin states. Theory indicates that their inversion symmetry provides first-order insensitivity to stray electric fields, a common limitation for optical coherence in any host material. Here we experimentally quantify this electric field dependence via an external electric field applied to individual tin-vacancy (SnV) centers in diamond. These measurements reveal that the permanent electric dipole moment and polarizability are at least 4 orders of magnitude smaller than for the diamond nitrogen vacancy (NV) centers, representing the first direct measurement of the inversion symmetry protection of a Group IV defect in diamond. Moreover, we show that by modulating the electric-field-induced dipole we can use the SnV as a nanoscale probe of local electric field noise, and we employ this technique to highlight the effect of spectral diffusion on the SnV.
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