Two-Photon Scattering in USC regime
Quantum Physics
2018-10-22 v1
Abstract
In this work we study the scattering of pairs of photons by a two-level system ultrastrongly coupled to a one-dimensional waveguide. We describe this problem using a spin-boson model with an Ohmic environment We show that when coupling strength lays is about the dynamics is well approximated by a polaron Hamiltonian, under the approximation of a conserved number of excitations. In this regime, we develop analytical predictions for the single- and two-photon scattering matrix computed with a Green's function method.
Cite
@article{arxiv.1810.08439,
title = {Two-Photon Scattering in USC regime},
author = {Vanessa Paulisch and Tao Shi and Juan Jose Garcia-Ripoll},
journal= {arXiv preprint arXiv:1810.08439},
year = {2018}
}