Spin anisotropic interactions of lower-polaritons in the vicinity of polaritonic Feshbach resonance

Abstract

We determine experimentally the spinor interaction constants of lower-polaritons ${\alpha }_1$ and ${\alpha }_2$ using resonant pump-probe spectroscopy with a spectrally narrow pump pulse. Our experimental findings are analyzed with the Bogoliubov-like theory and mean-field two channel model based on the lower-polariton and biexciton basis. We find an enhancement of the attractive interaction and dissipative nonlinearity of lower-polaritons with anti-parallel spins in the vicinity of the biexciton resonance when the energy of two lower-polaritons approaches energetically that of the biexciton. These observations are consistent with the existence of a scattering resonance between lower-polaritons and biexcitons (polaritonic Feshbach resonance).

References in corpus (8)

• Observation of Superfluidity of Polaritons in Semiconductor Microcavities
• Tuning the scattering length with an optically induced Feshbach resonance
• Polaritonic Feshbach Resonance
• Multidimensional Coherent Spectroscopy of a Semiconductor Microcavity
• Polariton-polariton scattering: exact results through a novel approach
• Probing the excitation spectrum of nonresonantly pumped polariton condensates
• Dephasing effects on coherent exciton-polaritons and the breaking of the strong coupling regime
• Coherent and incoherent aspects of polariton dynamics in semiconductor microcavities

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• Strong interactions and bi-excitons in a polariton mixture
• Spectroscopic probes of quantum many-body correlations in polariton microcavities
• Theory of polariton-electron interactions in semiconductor microcavities
• Interactions mediated by atoms, photons, electrons, and excitons
• Spinor polariton condensates under nonresonant pumping: Steady states and elementary excitations
• Dark-bright solitons in spinor polariton condensates under nonresonant pumping
• Artificial Life in an Exciton-Polariton Lattice
• Probing many-body correlations using quantum-cascade correlation spectroscopy
• Bichromatic four-wave mixing and quadrature-squeezing from biexcitons in atomically thin semiconductor microcavities
• Emergence and stability of spontaneous vortex lattices in exciton-polariton condensates
• Controllable fusion of electromagnetic bosons in two-dimensional semiconductors