2014/03/31 by Helgi Sigurðsson, H. Sigurdsson, O. A. Egorov +4 · 55 citations
Chemistry · Computer Science · Mathematics · Physics and Astronomy · #Binary number #Charge (physics) #Chemistry #Combinatorics #Condensed matter physics #Exciton #Mathematics #Mechanics #Neural Networks and Reservoir Computing #Non-equilibrium thermodynamics #Physics #Polariton #Quantum and electron transport phenomena #Quantum mechanics #Ring (chemistry) #Simple (philosophy) #Strong Light-Matter Interactions #Topological quantum number #Topology (electrical circuits) #Vortex #cond-mat.quant-gas
paper · pdf · doi:10.1103/physrevb.90.014504
published in Physical Review B 90(1) (American Physical Society)
arxiv created 2014/07/03 · openalex publication_date 2014/07/08 · arxiv updated 2015/12/10 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We show that in a nonequilibrium 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=\ensuremath-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 of processing using vortices as topologically protected memory components.