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quant-ph2026
High-gain effects in broadband continuous-wave parametric down conversion sources and measurements with undetected photons
Martin Houde, Franz Roeder, Christine Silberhorn +2
We study theoretically how high-gain effects affect the measurement outcome of visible signal spectra in undetected photon measurement schemes. We consider two interferometric conf…
quant-ph2026
Quantum Fisher information analysis for absorption measurements with undetected photons
Martin Houde, Franz Roeder, Christine Silberhorn +2
We theoretically compare the quantum Fisher information (QFI) for three configurations of absorption spectroscopy with undetected idler photons: an SU(1,1) interferometer with inte…
quant-ph2024
Gain-induced group delay in spontaneous parametric down-conversion
Guillaume Thekkadath, Martin Houde, Duncan England +4
Strongly-driven nonlinear optical processes such as spontaneous parametric down-conversion and spontaneous four-wave mixing can produce multiphoton nonclassical beams of light whic…