Optimal quantum spectroscopy using single-photon pulses

Sourav Das; Aiman Khan; Francesco Albarelli; Animesh Datta

doi:10.1103/dv49-gwsb

Optimal quantum spectroscopy using single-photon pulses

Quantum Physics 2026-03-17 v1

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

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Abstract

We provide the ultimate precision attainable in spectroscopy of a quantum emitter using single-photon pulses. We find the maximum for estimating the linewidth to be independent of the details of the emitter's bare Hamiltonian while that for the detunings not to be so. We also identify optimal pulse shapes attaining these precisions.

Keywords

single-photon sources ultrafast optics and quantum control quantum optics

Cite

@article{arxiv.2510.08386,
  title  = {Optimal quantum spectroscopy using single-photon pulses},
  author = {Sourav Das and Aiman Khan and Francesco Albarelli and Animesh Datta},
  journal= {arXiv preprint arXiv:2510.08386},
  year   = {2026}
}

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