Information processing with topologically protected vortex memories in exciton-polariton condensates

Abstract

We show that in a non-equilibrium system of an exciton-polariton condensate, where polaritons are generated from incoherent pumping, a ring-shaped pump allows for stationary vortex memory elements of topological charge $m=1$ or $m=-1$. Using simple potential guides we can choose whether to copy the same charge or invert it onto another spatially separate ring pump. Such manipulation of binary information opens the possibility of a new type processing using vortices as topologically protected memory components.

References in corpus (15)

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• Excitations in a non-equilibrium Bose-Einstein condensate of exciton-polaritons
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• Spatial and spectral shape of inhomogeneous non-equilibrium exciton-polariton condensates
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• Half-vortices in polariton condensates
• Light Engineering of the Polariton Landscape in Semiconductor Microcavities
• A complete architecture of integrated photonic circuits based on AND and NOT logic gates of exciton-polaritons in semiconductor microcavities
• Hydrodynamic nucleation of vortices and solitons in a resonantly excited polariton superfluid
• Effect of Interactions on Vortices in a Non-equilibrium Polariton Condensate
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• Separation and acceleration of analogues of magnetic monopoles in semiconductor microcavities
• Propagating wave-packets and quantised currents in coherently driven polariton superfluids

Cited by in corpus (18)

• Creation and manipulation of stable dark solitons and vortices in microcavity polariton condensates
• Realization of all-optical vortex switching in exciton-polariton condensates
• Vortex and half-vortex dynamics in a spinor quantum fluid of interacting polaritons
• Particle-like behavior of topological defects in linear wave packets in photonic graphene
• Interactions and scattering of quantum vortices in a polariton fluid
• All-optical flow control of a polariton condensate using non-resonant excitation
• Direct Transfer of Light's Orbital Angular Momentum onto Non-resonantly Excited Polariton Superfluid
• Quantum Vortex Formation in the "Rotating Bucket'' Experiment with Polariton Condensates
• Vortex multistability and Bessel vortices in polariton condensates
• Vortex-vortex control in exciton-polariton condensates
• Spontaneous and Superfluid Chiral Edge States in Exciton-Polariton Condensates
• Geometric frustration in polygons of polariton condensates creating vortices of varying topological charge
• Non-reciprocal Exciton-Polariton Ring Lattices
• Coupled exciton-photon Bose condensate in path integral formalism
• Vortex clusters in a stirred polariton condensate
• Detuning control of Rabi vortex oscillations in light matter coupling
• Spontaneous and engineered transformations of topological structures in nonlinear media with gain and loss
• Pulse, polarization and topology shaping of polariton fuids