3 papers
cond-mat.supr-con2026
Pairing properties of correlated three-leg ladders with strong interchain couplings near 1/3 filling
Yushi Yamada, Tatsuya Kaneko, Masataka Kakoi +2
We investigate the ground-state properties of correlated three-leg ladders near 1/3 filling. We apply the density-matrix renormalization group method to the three-leg t-J ladder wi…
cond-mat.str-el2026
Correlation-driven branch in doped excitonic insulators
Tatsuya Kaneko, Ryota Ueda, Satoshi Ejima
We investigate the spectral properties of doped one-dimensional excitonic insulators. Employing matrix-product-state-based methods, we compute the single-particle spectrum and opti…
cond-mat.str-el2025
Doublon-Holon Pairing State in Photodoped Mott Insulators
Ryota Ueda, Madhumita Sarkar, Zala Lenarčič +3
We demonstrate the existence of an unconventional pairing state in photodoped Mott insulators on ladder and quasi-two-dimensional geometries, characterized by quasi-long-range doub…