Optimal quantum spectroscopy using single-photon pulses
We provide the ultimate precision attainable in spectroscopy of a quantum emitter using single-photon pulses. We find that the maximum precision of linewidth estimation is independent of the details of the emitter's bare Hamiltonian, though this is not true for the detunings. We also identify optimal pulse shapes attaining these precisions.
Authors
- Aiman Khan (ORCID: https://orcid.org/0009-0006-0697-8343)
- Animesh Datta (ORCID: https://orcid.org/0000-0003-4021-4655)
- Francesco Albarelli (ORCID: https://orcid.org/0000-0001-5775-168X)
- Sourav Das (ORCID: https://orcid.org/0000-0003-0681-2221)
Institutions
- University of Parma (IT)
- University of Nottingham (GB)
- University of Warwick (GB)
Publication Details
- Journal
- Physical review. A/Physical review, A
- Published
- 2026-02-24
- DOI
- https://doi.org/10.1103/dv49-gwsb
- Primary Topic
- Quantum Information and Cryptography
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Government of the United Kingdom
- UK Research and Innovation
- University of Warwick
- HORIZON EUROPE Framework Programme
- Engineering and Physical Sciences Research Council