101 citations · 593 across the 21 of their papers we have counts for
21 papers
Toward bootstrapping tensor-network contractions
Seishiro Ono, Yanbai Zhang, Hoi Chun Po
Accurate contraction of tensor networks beyond one dimension is essential in various fields including quantum many-body physics. Existing approaches typically rely on approximate c…
Unitary network: Tensor network unitaries with local unitarity
Wenqing Xie, Seishiro Ono, Hoi Chun Po
We introduce unitary network, an oriented architecture for tensor network unitaries. Compared to existing architectures, in a unitary network each local tensor is required to be a…
Frustration-free free fermions
Seishiro Ono, Rintaro Masaoka, Haruki Watanabe +1
We develop a general theory of frustration-free free-fermion systems and derive the necessary and sufficient conditions for such Hamiltonians. Assuming locality and translation inv…
Frustration-free free fermions and beyond
Rintaro Masaoka, Seishiro Ono, Hoi Chun Po +1
Frustration-free Hamiltonians provide pivotal models for understanding quantum many-body systems. In this paper, we establish a general framework for frustration-free fermionic sys…
Optical response of edge modes in time-reversal symmetric topological superconductors
Hirokazu Kobayashi, Han Bi, James Jun He +1
Topological superconductors and Majorana edge modes at their boundaries have been theoretically predicted. However, their experimental observation remains controversial. Recent the…
Fermi-surface diagnosis for topological superconductivity with -wave-like pairing symmetries
Zhongyi Zhang, Ken Shiozaki, Chen Fang +1
Theoretical prediction of topological superconductivity is key to their discovery. Recently, it is proved that in 199 out of 230 space groups, topological superconductivity coexist…