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2026 1 2025 1

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Path Integral Approach to Input-Output Theory

quant-ph · 2025-09-09 · unverdicted · novelty 6.0

A Schwinger-Keldysh path integral formalism is developed for input-output theory, enabling computation of full output field coherence functions for nonlinear quantum systems.

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Showing 2 of 2 citing papers.

  • CMB Limits on the Absorption of Light Vector and Axial-Vector Dark Matter astro-ph.CO · 2026-05-08 · conditional · none · ref 109

    Planck CMB data set upper limits on vector and axial-vector dark matter-electron couplings for masses 100 eV to 100 keV via energy injection from inelastic scattering and hydrogen absorption.

  • Path Integral Approach to Input-Output Theory quant-ph · 2025-09-09 · unverdicted · none · ref 41

    A Schwinger-Keldysh path integral formalism is developed for input-output theory, enabling computation of full output field coherence functions for nonlinear quantum systems.