Damped magnon excitations in skyrmion-string lattices exhibit point-gap non-Hermitian topology, enabling skin effect and damping-dependent propagation even with only local damping.
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Quasiperiodic critical regimes of a modulated Hatano–Nelson model under PBC exhibit the non-Hermitian skin effect under OBC, with an exact Lyapunov exponent fixing the left/right skin boundary.
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Point-gap topology of damped magnon excitations in skyrmion strings
Damped magnon excitations in skyrmion-string lattices exhibit point-gap non-Hermitian topology, enabling skin effect and damping-dependent propagation even with only local damping.
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Interplay of Quasiperiodic Criticality and the Non-Hermitian Skin Effect
Quasiperiodic critical regimes of a modulated Hatano–Nelson model under PBC exhibit the non-Hermitian skin effect under OBC, with an exact Lyapunov exponent fixing the left/right skin boundary.