Spectroscopic probes of quantum many-body correlations in polariton microcavities
arXiv:1806.10835 · doi:10.1103/PhysRevLett.123.266401
Abstract
We investigate the many-body states of exciton-polaritons that can be observed by pump-probe spectroscopy. Here, a weak-probe `spin-down' polariton is introduced into a coherent state of `spin-up' polaritons created by a strong pump. We show that the impurities become dressed by excitations of the medium, and form new polaronic quasiparticles that feature two-point and three-point many-body quantum correlations, which, in the low density regime, arise from coupling to the vacuum biexciton and triexciton states respectively. In particular, we find that these correlations generate additional branches and avoided crossings in the optical transmission spectrum that have a characteristic dependence on the -polariton density. Our results thus demonstrate a way to directly observe correlated many-body states in an exciton-polariton system that go beyond classical mean-field theories.
6 pages, 3 figures, plus supplemental material
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Cited by in corpus (18)
- Polariton interactions in microcavities with atomically thin semiconductor layers
- Mediated interactions and photon bound states in an exciton-polariton mixture
- Interactions mediated by atoms, photons, electrons, and excitons
- Theory of polariton-electron interactions in semiconductor microcavities
- Exact Ansatz of Fermion-Boson Systems for a Quantum Device
- Crossover from exciton polarons to trions in doped two-dimensional semiconductors at finite temperature
- Effect of fermion indistinguishability on optical absorption of doped two-dimensional semiconductors
- Probing many-body correlations using quantum-cascade correlation spectroscopy
- Variational approach to the two-dimensional Bose polaron
- Trion resonance in polariton-electron scattering
- The Fate of the Upper Polariton: Breakdown of the Quasiparticle Picture in the Continuum
- Polaronic polariton quasiparticles in a dark excitonic medium
- Polaritons for testing the universality of an impurity in a Bose-Einstein condensate
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- Repulsive Fermi and Bose Polarons in Quantum Gases
- Excitonic Bose-polarons in electron-hole bilayers
- Polaronic dressing of bound states
- Bose Polaron in a quantum fluid of light