Polariton-polariton scattering: exact results through a novel approach

Abstract

We present a fully microscopic approach to the transition rate of two exciton-photon polaritons. The non-trivial consequences of the polariton composite nature -- here treated exactly through a development of our composite-exciton many-body theory -- lead to results noticeably different from the ones of the conventional approaches in which polaritons are mapped into elementary bosons. Our work reveals an appealing fundamental scattering which corresponds to a photon-assisted exchange -- in the absence of Coulomb process. This scattering being dominant when one of the scattered polaritons has a strong photon character, it should be directly accessible to experiment. In the case of microcavity polaritons, it produces a significant enhancement of the polariton transition rate when compared to the one coming from Coulomb interaction. This paper also contains the crucial tools to securely tackle the many-body physics of polaritons, in particular towards its possible BEC.

arXiv commentTo be published in Europhysics Letters

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Cited by in corpus (24)

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• Interference of Degenerate Polariton Condensates in Microcavities
• Polariton-polariton scattering in microcavities: A microscopic theory
• 2D Fourier Transform Spectroscopy of exciton-polaritons and their interactions
• Microscopic description of exciton-polaritons in microcavities
• "Gray" BCS condensate of excitons and internal Josephson effect
• Spin anisotropic interactions of lower-polaritons in the vicinity of polaritonic Feshbach resonance
• Strong interactions and bi-excitons in a polariton mixture
• Effects of fermion exchanges on the polarization of exciton condensates
• Moiré-induced optical non-linearities: Single and multi-photon resonances
• Theory of polariton-electron interactions in semiconductor microcavities
• Microscopic calculation of polariton scattering in semiconductor microcavities
• Dephasing effects on coherent exciton-polaritons and the breaking of the strong coupling regime
• Closure relations for composite bosons: difference between polaritons and Wannier or Frenkel excitons
• Electronic structure and absorption spectrum of biexciton obtained by using exciton basis
• Effective attractive polariton-polariton interaction mediated by the exciton reservoir
• Microscopic theory of nonlinear phase space filling in polaritonic lattices
• Photoionization cross section of 1s orthoexcitons in cuprous oxide
• Rydberg excitons and polaritons in monolayer transition metal dichalcogenides in a magnetic field
• Analytical approach to semiconductor Bloch equations
• Fundamental collapse of the exciton-exciton effective scattering
• Ground state energy of N Frenkel excitons
• Scattering amplitudes for dark and bright excitons
• Magnetic field control of intersubband polaritons in narrow-gap semiconductors