Modulated Hubbard interaction realizes C=+2 many-body pump whose boundary spectral flow splits into distinct edge events with an intervening neutral spinful triplet excitation.
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A non-Bloch framework is established for nonlinear eigenvalue problems to reproduce open-boundary spectra and reveal unique phenomena plus topological correspondence.
Non-Hermiticity induces fractional topological phases in nonlinear Thouless pumping of a Rice-Mele model, explained through auxiliary eigenvalue equations that connect nonlinear spectra to bulk-boundary correspondence.
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Interaction-Split Edge Spectral Flow and Neutral Triplet Boundary Modes in a C = 2 Hubbard Pump
Modulated Hubbard interaction realizes C=+2 many-body pump whose boundary spectral flow splits into distinct edge events with an intervening neutral spinful triplet excitation.
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Non-Bloch band theory of nonlinear eigenvalue problems
A non-Bloch framework is established for nonlinear eigenvalue problems to reproduce open-boundary spectra and reveal unique phenomena plus topological correspondence.
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Nonreciprocity Induced Fractional Nonlinear Thouless Pumping
Non-Hermiticity induces fractional topological phases in nonlinear Thouless pumping of a Rice-Mele model, explained through auxiliary eigenvalue equations that connect nonlinear spectra to bulk-boundary correspondence.