50 citations · 53 across the 4 of their papers we have counts for
3 papers
quant-ph2023★ 1 cited
Quadratic acceleration of multi-step probabilistic algorithms for state preparation
Hirofumi Nishi, Taichi Kosugi, Yusuke Nishiya +1
For quantum state preparation, a non-unitary operator is typically designed to decay undesirable states contained in an initial state using ancilla qubits and a probabilistic actio…
quant-ph2023★ 1 cited
Quantum-Error-Mitigation Circuit Groups for Noisy Quantum Metrology
Yusuke Hama, Hirofumi Nishi
Quantum technologies work by utilizing properties inherent in quantum systems such as quantum coherence and quantum entanglement and are expected to be superior to classical counte…
cond-mat.mtrl-sci2016★ 50 cited
Band-unfolding approach to Moirè-induced band-gap opening and Fermi-level-velocity reduction in twisted bilayer graphene
Hirofumi Nishi, Yu-ichiro Matsushita, Atsushi Oshiyama
We report on the energy spectrum of electrons in twisted bilayer graphene (tBLG) obtained by the band-unfolding method in the tight-binding model. We find the band-gap opening at p…