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Lyapunov Dynamics in Entangled Biphoton Spectroscopy (2504.14086v2)
Published 18 Apr 2025 in quant-ph, physics.chem-ph, and physics.optics
Abstract: We develop a Lyapunov-based framework to model the evolution of entangled biphotons interacting with cavity and material modes. Using Gaussian-preserving dynamics and M{\o}ller operators, we map input joint spectral amplitudes to experimentally measurable joint spectral intensities. Our model reproduces key features of observed spectra and reveals off-diagonal correlations arising from cavity decay, providing a scalable and tractable tool for quantum spectroscopic analysis.
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