Work

Optimal quantum spectroscopy using single-photon pulses

Year: 2026

Type: article

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.

Source: Physical Review A

DOI: 10.1103/dv49-gwsb

Authors: Sourav Das, Aiman Khan, Francesco Albarelli, Animesh Datta

Institutions: University of Warwick, University of Nottingham, University of Parma

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,675