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math-ph2026
Quasi-Pfaffian Solutions to Integrable Systems via Sylvester-Moutard Transformations
Claire R Gilson, Chen Shu
In this paper, we introduce a mathematical structure called the quasiPfaffian. The quasiPfaffian is analogous to the quasideterminant, a structure used instead of a determinant in…
quant-ph2026
Distribution of fidelity zeros in two-band topological models
Siyan Lin, Zhen-Yu Zheng, Shu Chen
We investigate the distribution of fidelity zeros in two-band topological models by extending the phase transition driving parameter into the complex plane. Within the biorthogonal…