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Title: Group-III quantum defects in diamond are stable spin-1 color centers

Journal Article · · Physical Review. B
 [1];  [2];  [2];  [3]; ORCiD logo [2]
  1. Harvard Univ., Cambridge, MA (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Harvard Univ., Cambridge, MA (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
+ Show Author Affiliations

Color centers in diamond have emerged as leading solid-state “artificial atoms” for a range of quantum technologies, from quantum sensing to quantum networks. Concerted research activities are now underway to identify new color centers that combine stable spin and optical properties of the nitrogen vacancy (NV–) with the spectral stability of the silicon vacancy (SiV–) centers in diamond, with recent research identifying other group-IV color centers with superior properties. In this paper, we investigate a class of diamond quantum emitters from first principles, the group-III color centers, which we show to be thermodynamically stable in a spin-1, electric-field-insensitive structure. Further, from ab initio electronic structure methods, we characterize the product Jahn-Teller (pJT) effect present in the excited-state manifold of these group-III color centers, where we capture symmetry-breaking distortions associated with strong electron-phonon coupling. These predictions can guide experimental identification of group-III vacancy centers and their use in applications in quantum information science and technology.

Research Organization:
Stanford Univ., CA (United States); Univ. of California, Oakland, CA (United States); Energy Frontier Research Centers (EFRC) (United States). Photonics at Thermodynamic Limits; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC); US Army Research Office (ARO); German Research Foundation (DFG)
Grant/Contract Number:
SC0019140; AC02-05CH11231; W911NF-18-1-0431; FL 997/1-1; GBMF 8048
OSTI ID:
1852883
Journal Information:
Physical Review. B, Vol. 102, Issue 19; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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