polariton condensates
Exciton polariton condensates near the Dirac point in a triangular lattice
... Abstract. Dirac particles, massless relativistic entities, obey linear energy dispersions and hold important implications in particle physics. The recent discovery of Dirac fermions in condensed matter systems including ...
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Nonresonant spin selection methods and polarization control in exciton polariton condensates
... confined polariton modes detailed in the supplemental material ...the condensates forming in two ellipses with the orthogonal orientation of their long ...bosonic condensates by photonic engi- ...
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Localization and self trapping in driven dissipative polariton condensates
... exciton-polariton condensates is important for optical communications technologies demanding ultrafast optical switches, long-range coherence, as well as picosecond quantum computing processes ...
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Driven dissipative spin chain model based on exciton polariton condensates
... In conclusion, we have solved analytically and investi- gated numerically solutions in an infinite chain of coupled driven-dissipative spinor polariton condensates. A mix- ture of intra-spin coupling and ...
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Parametric relaxation in whispering gallery mode exciton polariton condensates
... Multimode polariton systems that undergo inter- or intrabranch parametric scattering processes [5–7] are promising for sources of entangled photons ...in polariton microcavities etched into wire-shaped ...
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Stochastic spin flips in polariton condensates : nonlinear tuning from GHz to sub Hz
... monotonous dependence on pump power. We mapped the spin-power phase diagram of the condensate and found that this non-monotonous behaviour is rooted in the asymmetric cross-spin to same-spin scattering between polaritons ...
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Optical bistability in electrically driven polariton condensates
... of polariton condensates can propagate over macroscopic distances in designed channel structures [11,12] and two-dimensional systems [13], it is the matter part which allows for the efficient manipulation ...
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Transient optical parametric oscillations in resonantly pumped multistable cavity polariton condensates
... Recent studies have shown that nonequilibrium transitions related to multistability as well as OPO formation are in fact complex processes involving a chain of instabilities and relaxation effects that may have distinct ...
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Observation of inversion, hysteresis, and collapse of spin in optically trapped polariton condensates
... We have observed three distinct phenomena in optically trapped polariton condensates pumped with elliptically polar- ized nonresonant light. The first is the formation of conden- sates of opposite spin to ...
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Spatial coherence properties of one dimensional exciton polariton condensates
... In the case of a spatially homogeneous system, the first- order coherence is only dependent on the relative distance: g ð1Þ ðr 0 ; r 00 Þ ¼ g ð1Þ ðrÞ, where r ¼ jr 0 − r 00 j. In the ODLRO phase, the correlations do not ...
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Loss of coherence in cavity polariton condensates: effect of disorder vs exciton reservoir
... In Figs.1a and 2a it is seen that I(x) in the excited con- densate (t ∼ 3 ps) fluctuates along the strip. We connect these fluctuations with disorder. The much lower ampli- tude of the fluctuations of I(x) in Fig.1a ...
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Nonlinear route to intrinsic Josephson oscillations in spinor cavity polariton condensates
... allows polaritons to undergo Bose-Einstein condensation at comparatively high temperatures of about 10 K in GaAs and CdTe cavities [2–4] and even 300 K in GaN cavities [5]. Both the amplitude and phase of a ...
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Electrical tuning of nonlinearities in exciton polariton condensates
... Achieving the nonlinear quantum regime in photonics where the single-site effective photon interaction energy is larger than the losses, opens a plethora of interesting phe- nomena such as photon blockade [1], photon ...
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Blowup dynamics of coherently driven polariton condensates : experiment
... Together with the theoretical work [20], our current study reveals the interrelation between the multistability and parametric scattering in resonantly driven cavity-polariton sys- tems. Under slightly ...
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Phase locking in quantum and classical oscillators: polariton condensates, lasers, and arrays of Josephson junctions
... The distinctions between coupled oscillators, BEC of polaritons, and strongly damped lasers is an important one in the context of recent experiments on semiconduc- tor microcavities. We will not give a detailed review of ...
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Evolution of temporal coherence in confined exciton polariton condensates
... The duration of the pulses absorbed by the cavity is signif- icantly enhanced due to the interaction with the long-living exciton reservoir, which extends over several polariton life- times. Therefore, to reduce ...
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Synchronization crossover of polariton condensates in weakly disordered lattices
... flow of polaritons from the higher-energy to the lower-energy condensate collapses their energy detuning and synchronizes (SYNC) them due to repulsive nonlinearities, as the higher- energy condensate becomes less ...
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Effect of polariton-polariton interactions on the excitation spectrum of a nonequilibrium condensate in a periodic potential
... 2013) Polariton condensates are investigated in periodical potentials created by surface acoustic waves (SAWs) using both coherent and incoherent optical ...pumping, condensates are formed due to ...
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Supermode density wave polariton condensation with a Bose Einstein condensate in a multimode cavity
... the BEC position and shape. The matter component is an atomic DW excitation rather than the electronic excitation of exciton-polariton condensates. It is important to distinguish the condensation of ...
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Build up of off diagonal long range order in microcavity exciton polaritons across the parametric threshold
... Polariton condensates can be created using off-resonant, resonant or under parametric optical ...lower polariton branch (LPB), scatter efficiently into a signal and an idler polariton ...
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