Coherent Oscillations in an Exciton-Polariton Josephson Junction
arXiv:1004.2216 · doi:10.1103/PhysRevLett.105.120403
Abstract
We report on the observation of spontaneous coherent oscillations in a microcavity polariton bosonic Josephson junction. The condensation of exciton polaritons takes place under incoherent excitation in a disordered environment, where double potential wells tend to appear in the disordered landscape. Coherent oscillations set on at an excitation power well above the condensation threshold. The time resolved population and phase dynamics reveal the analogy with the AC Josephson effect. We have introduced a theoretical two-mode model to describe the observed effects, which allows us to explain how the different realizations of the pulsed experiment have a similar phase relation.
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- Frequency combs with weakly lasing exciton-polariton condensates
- All-optical flow control of a polariton condensate using non-resonant excitation
- Coherence expansion and polariton condensate formation in a semiconductor microcavity
- Relaxation Oscillations in the Formation of a Polariton Condensate
- Multi-stability and condensation of exciton-polaritons below threshold
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- Phononic Josephson oscillation and self-trapping with two-phonon exchange interaction
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- Coherence oscillations between weakly coupled Bose-Hubbard dimers
- Self-rotation and synchronization in exciton-polariton condensates
- Quench dynamics in strongly coupled laser cavities
- Polaritonic linear dynamic in Keldysh formalism