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Input-Output Formalism for Few-Photon Transport: A Systematic Treatment Beyond Two Photons by Xu, Shanshan; Fan, Shanhui is a scholarly article available to read on EtoBox.

What is Input-Output Formalism for Few-Photon Transport: A Systematic Treatment Beyond Two Photons about?

We provide a systematic treatment of $N$-photon transport in a waveguide coupled to a local system, using the input-output formalism. The main result of the paper is a general connection between the $N$-photon S matrix and the Green functions of the local system. We also show that the computation can be significantly simplified, by exploiting the connectedness structure of both the S matrix and the Green function, and by computing the Green function using an effective Hamiltonian that involves only the degrees of freedom of the local system. We illustrate our formalism by computing $N$-photon transport through a cavity containing a medium with Kerr nonlinearity, with $N$ up to 3.

Author

Xu, Shanshan; Fan, Shanhui

Published

2015

Language

EN