Universal time scalings of sensitivity in Markovian quantum metrology
The paper provides a full understanding on the maximal achievable quantum Fisher information (QFI) in quantum sensing protocols, with continuous time dynamics in the presence of Markovian noise, assuming arbitrary quantum controls. It provides simple algebraic conditions on the character of short time and long time scalings of the QFI (quadratic or linear) as well as characterization of the corresponding time scales.
Authors
- Arpan Das (ORCID: https://orcid.org/0000-0002-0392-6680)
- Wojciech Górecki (ORCID: https://orcid.org/0000-0001-9912-9186)
- Rafał Demkowicz-Dobrzański (ORCID: https://orcid.org/0000-0001-5550-4431)
Institutions
- Istituto Nazionale di Fisica Nucleare, Sezione di Pavia (IT)
- University of Warsaw (PL)
Publication Details
- Journal
- Physical review. A/Physical review, A
- Published
- 2025-02-10
- DOI
- https://doi.org/10.1103/physreva.111.l020403
- Citations
- 3
- Primary Topic
- Quantum Information and Cryptography
- Type
- article
- Field-Weighted Citation Impact
- 7.44
Funders
- U.S. Department of Energy
- Narodowe Centrum Nauki
- Office of Science