2 papers
quant-ph2026
One cut, two parities: exact Fibonacci charge responses in the golden chain
Yi Liang
We determine the exact cut-charge Born law in the ground state of every periodic antiferromagnetic golden chain with at least three sites. Its two parity branches retain different…
quant-ph2026
Physical reduced states and continuum characters of the lattice Kramers-Wannier defect
Yi Liang
A non-invertible topological line fixes global defect data but does not select a reduced density matrix in a spatially twisted sector. For the Kramers-Wannier defect of the critica…