Noise-free scattering of the quantized electromagnetic field from a dispersive linear dielectric

Details Noise-free scattering of the quantized electromagnetic field from a dispersive linear dielectric Noise-free scattering of the quantized electromagnetic field from a dispersive linear dielectric

2000-07-24

arxiv.org/abs/quant-ph/0007084v1

Physics

Quantum Physics

Revtex, submitted to Physical Review A

Scientific paper

10.1103/PhysRevA.64.013815

We study the scattering of the quantized electromagnetic field from a linear, dispersive dielectric using the scattering formalism for quantum fields. The medium is modeled as a collection of harmonic oscillators with a number of distinct resonance frequencies. This model corresponds to the Sellmeir expansion, which is widely used to describe experimental data for real dispersive media. The integral equation for the interpolating field in terms of the in field is solved and the solution used to find the out field. The relation between the in and out creation and annihilation operators is found which allows one to calculate the S-matrix for this system. In this model, we find that there are absorption bands, but the input-output relations are completely unitary. No additional quantum noise terms are required.

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