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Author

E. Darsheshdar

2 papers indexed here

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Preprint Oct 2026

Photon-Pair Advantage for Dissipative Parameter Estimation in Whispering-Gallery-Mode Interferometers

We study the estimation of detuning and intrinsic loss in a lossy whispering-gallery-mode (WGM) resonator located in a balanced Mach--Zehnder interferometer. We use indistinguishable photon pairs and coherent-state probes. We show that using indistinguishable photon pairs can provide higher Quantum Fisher Information (...

E. Darsheshdar, Callum Jones, S. Moniri et al. · 0 citations
Preprint Aug 2026

Pulsed single-photon magnetometry with a $\Lambda$-type three-level system: near-optimal frequency-resolved photon counting

We investigate pulsed single-photon magnetometry with a Zeeman-sensitive $\Lambda$-type three-level system driven by a classical control field. We derive the asymptotic output state and decompose its quantum Fisher information into photon-loss, spectral-intensity, and spectral-phase contributions. Environmental couplin...

S. Moniri, E. Darsheshdar, M. Khanbekyan · 0 citations

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