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Description:

Geometric effects can play a pivotal role in streamlining quantum manipulation. We demonstrate a geometric diabatic control, that is, perfect tunneling between spin states in a diamond by a quadratic sweep of a driving field. The field sweep speed for the perfect tunneling is determined by the geometric amplitude factor and can be tuned arbitrarily. Our results are obtained by testing a quadratic version of Berry’s twisted Landau-Zener model. This geometric tuning is robust over a wide parameter range. Our work provides a new basis for quantum control in various systems, including condensed matter physics, quantum computation, and nuclear magnetic resonance.

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• In Copyright
  

  ©2025 American Physical Society

Keyword: diamond quantum magnetomete, encephalomagnetic field, dry-type phantom

Date published: 2023-05-26

Publisher: American Physical Society (APS)

Journal:

• PHYSICAL REVIEW A (ISSN: 24699926) vol. 107 issue. 5

Funding:

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.6024

First published URL: https://doi.org/10.1103/PhysRevA.107.053113

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Updated at: 2026-02-16 17:45:58 +0900

Published on MDR: 2025-12-19 21:03:00 +0900