5 citations · 7 across the 5 of their papers we have counts for
5 papers
Superconductivity in doped spin multimer systems
Ritsuki Hirabayashi, Masataka Kakoi, Ryota Ueda +2
Binding energy, which quantifies pair formation, is a key factor in the emergence of superconductivity. Here, we show that even when multiple spins are complexly coupled, hole-dope…
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…
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…
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…
Photoinduced -pairing correlation in the Hubbard ladder
Ryota Ueda, Kazuhiko Kuroki, Tatsuya Kaneko
We investigate the staggered correlation of the on-site pairs, the so-called -pairing correlation, induced by pump electric fields in the Hubbard model on the ladder lattice. Em…