Title:	Single photons versus coherent-state input in waveguide quantum electrodynamics: Light scattering, Kerr, and cross-Kerr effect
Authors:	Vinu, Athul Roy, Dibyendu
Keywords:	quantum optics scattering theory Kerr Effect Light scattering nonperturbative methods Jaynes-Cummings
Issue Date:	2-Feb-2023
Publisher:	American Physical Society
Citation:	Physical Review A, Vol.107, p023704
Abstract:	While the theoretical studies in waveguide quantum electrodynamics predominate with single-photon and two-photon Fock-state (photon number states) input, the experiments are primarily carried out using a faint coherent light. We create a theoretical toolbox to compare and contrast linear and nonlinear light scattering by a two-level or a three-level emitter embedded in an open waveguide carrying Fock-state or coherent-state inputs. We particularly investigate light transport properties and the Kerr and cross-Kerr nonlinearities of the medium for the two types of inputs. A generalized description of the Kerr and cross-Kerr effect for different types of inputs is formulated using the first-order correlation function to compare the Kerr and cross-Kerr nonlinearity between two photons in these models.
Description:	Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI:	http://hdl.handle.net/2289/8036
ISSN:	1050-2947 1094-1622 (Online)
Alternative Location:	https://arxiv.org/abs/2209.03418 https://doi.org/10.1103/PhysRevA.107.023704 https://ui.adsabs.harvard.edu/abs/2022arXiv220903418V/abstract https://inspirehep.net/literature/2149035
Copyright:	2023 American Physical Society
Appears in Collections:	Research Papers (TP)

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