General structure of two-photon S matrix in waveguide quantum electrodynamics systems containing a local quantum system with multiple ground states
Quantum Physics
2017-06-21 v1
Abstract
We present the general structure of two-photon S matrix for a waveguide coupled to a local quantum system that supports multiple ground states. The presence of the multiple ground states results in a non-commutative aspect of the system with respect to the exchange of the orders of photons. Consequently, the two-photon S matrix significantly differs from the standard form as described by the cluster decomposition principle in the quantum field theory.
Keywords
Cite
@article{arxiv.1610.01727,
title = {General structure of two-photon S matrix in waveguide quantum electrodynamics systems containing a local quantum system with multiple ground states},
author = {Shanshan Xu and Shanhui Fan},
journal= {arXiv preprint arXiv:1610.01727},
year = {2017}
}