title: Effect of pure dephasing on the Jaynes-Cummings nonlinearities.
abstract: We study the effect of pure dephasing on a two-level system in strong coupling in the nonlinear regime with the single mode of a cavity. The photoluminescence spectrum of the cavity has a robust tendency to display triplet structures, instead of the expected Jaynes-Cummings pairs of doublets at the incommensurate frequencies +/- (square root n +/- square root (n-1)) for integer n. We discuss recent experimental works that may already manifest signatures of single photon nonlinearities.
authors.affiliation: Física Téorica de la Materia Condensada, Universidad Autónoma de Madrid, 28049, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Gonzalez-Tudela
authors.forename: E
authors.initials: E
authors.lastname: del Valle
authors.forename: E
authors.initials: E
authors.lastname: Cancellieri
authors.forename: C
authors.initials: C
authors.lastname: Tejedor
authors.forename: D
authors.initials: D
authors.lastname: Sanvitto
authors.forename: F P
authors.initials: FP
authors.lastname: Laussy