Above a critical parametric drive, a cross-Kerr-coupled resonator chain enters a nonlinearity-dictated topological phase with spontaneous symmetry breaking and non-trivial bulk-boundary correspondence.
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A simplified real-space Chern number via supercell Wilson loops is shown to be integer-quantized and is used to demonstrate that polarized disorder preserves topology while uniform disorder drives a phase transition in an extended Rice-Mele model.
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Nonlinearity-driven Topology via Spontaneous Symmetry Breaking
Above a critical parametric drive, a cross-Kerr-coupled resonator chain enters a nonlinearity-dictated topological phase with spontaneous symmetry breaking and non-trivial bulk-boundary correspondence.
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Real-space formulation of the Chern invariant and topological phases in a disordered Chern insulator
A simplified real-space Chern number via supercell Wilson loops is shown to be integer-quantized and is used to demonstrate that polarized disorder preserves topology while uniform disorder drives a phase transition in an extended Rice-Mele model.