2.2k citations · 9k across the 127 of their papers we have counts for
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Dissipative spin chain as a non-Hermitian Kitaev ladder
Naoyuki Shibata, Hosho Katsura
We derive exact results for the Lindblad equation for a quantum spin chain (one-dimensional quantum compass model) with dephasing noise. The system possesses doubly degenerate none…
Transforming Generalized Ising Model into Boltzmann Machine
Nobuyuki Yoshioka, Yutaka Akagi, Hosho Katsura
We find an exact mapping from the generalized Ising models with many-spin interactions to equivalent Boltzmann machines, i.e., the models with only two-spin interactions between ph…
Topological Invariant for Magnon Spin Hall Systems
Hiroki Kondo, Yutaka Akagi, Hosho Katsura
We propose a definition of a topological invariant for magnon spin Hall systems which are the bosonic analog of two-dimensional topological insulators in class AII.…
Exact ground states for interacting Kitaev chains
Jurriaan Wouters, Hosho Katsura, Dirk Schuricht
We introduce a frustration-free, one-dimensional model of spinless fermions with hopping, p-wave superconducting pairing and alternating chemical potentials. The model possesses tw…
Effective dimension, level statistics, and integrability of Sachdev-Ye-Kitaev-like models
Eiki Iyoda, Hosho Katsura, Takahiro Sagawa
The Sachdev-Ye-Kitaev (SYK) model attracts attention in the context of information scrambling, which represents delocalization of quantum information and is quantified by the out-o…
Rigorous Results for the Ground States of the Spin-2 Bose-Hubbard Model
Hong Yang, Hosho Katsura
We present rigorous and universal results for the ground states of the spinor Bose-Hubbard model. The model includes three two-body on site interaction terms, two of which ar…
Parity-time-symmetric topological superconductor
Kohei Kawabata, Yuto Ashida, Hosho Katsura +1
We investigate a topological superconducting wire with balanced gain and loss that is effectively described by the non-Hermitian Kitaev/Majorana chain with parity-time symmetry. Th…