A scale-free topological directional amplification is found in the Hatano-Nelson model with perturbed open boundaries, attributed to first-order boundary effects and characterized by a winding number on a continuous generalization of the finite-size Brillouin zone.
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In a mean-field driven lattice gas with obstacle, a nonequilibrium transition creates local invariants that shield the obstacle complex from external drive fluctuations and localize noise-induced fluctuations near the phase domain wall.
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Scale-Free Response with Directional Amplification in Critical Non-Hermitian Systems
A scale-free topological directional amplification is found in the Hatano-Nelson model with perturbed open boundaries, attributed to first-order boundary effects and characterized by a winding number on a continuous generalization of the finite-size Brillouin zone.
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Nonequilibrium protection effect and spatial localization of noise-induced fluctuations: Quasi-one-dimensional driven lattice gas with partially penetrable obstacle
In a mean-field driven lattice gas with obstacle, a nonequilibrium transition creates local invariants that shield the obstacle complex from external drive fluctuations and localize noise-induced fluctuations near the phase domain wall.