Optimal quantum spectroscopy using single-photon pulses

Physical Review A 2026 Open access

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Authors: Sourav Das, Aiman Khan, Francesco Albarelli, Animesh Datta
DOI: 10.1103/dv49-gwsb
Cited by: 1
References: 32

Abstract

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.

Fields of Study & Subjects

Quantum Information and Cryptography Laser-Matter Interactions and Applications Quantum optics and atomic interactions

Publication details

Journal / source
Physical Review A
Publisher
American Physical Society (APS)
Volume
113
Issue
3
Publication date
24 February 2026
Language
EN