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Nonlinear Absorption Produces Non-Gaussian Quantum Noise
A path-integral treatment derives noise polarization in dispersive, absorbing nonlinear media and ties it to the nonlinear fluctuation-dissipation theorem.
Summary
A path-integral treatment derives noise polarization in dispersive, absorbing nonlinear media and ties it to the nonlinear fluctuation-dissipation theorem.
Starting from a microscopic Huttner-Barnett model with cubic matter interaction, the theory decouples bath-response weights through Airy functions and obtains non-Gaussian noise for second-order nonlinear processes. This is a formal model of light in nonlinear media, not a reported device or laboratory observation.
Why it matters
A path-integral treatment derives noise polarization in dispersive, absorbing nonlinear media and ties it to the nonlinear fluctuation-dissipation theorem.
Limits and context
- This is a formal model of light in nonlinear media, not a reported device or laboratory observation.
Key claims
A path-integral treatment derives noise polarization in dispersive, absorbing nonlinear media and ties it to the nonlinear fluctuation-dissipation theorem.
Qualification: This is a formal model of light in nonlinear media, not a reported device or laboratory observation.
Evidence: source-2026-10-25-021
Sources
- arXiv preprint 2610.31406, original v1arXiv · primary research
Corrections
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