2 papers
cond-mat.str-el2025
Eta-pairing state in flatband lattice: Interband coupling effect on entanglement entropy logarithm
Seik Pak, Hanbyul Kim, Chan Bin Bark +3
The eta-pairing state is the eigenstate of the hypercubic Hubbard model, which exhibits anomalous logarithmic scaling of entanglement entropy. In multi-band systems, eta-pairing ca…
quant-ph2023
Floquet Chiral Quantum Walk in Quantum Computer
Chan Bin Bark, Youngseok Kim, Moon Jip Park
Chiral edge states in quantum Hall effect are the paradigmatic example of the quasi-particle with chirality. In even space-time dimensions, the Nielsen-Ninomiya theorem strictly fo…