"Hidetoshi Nishimori,Junichi Tsuda,Sergey Knysh","Comparative study of the performance of quantum annealing and simulated annealing",,"Physical Review E",,"Vol. 91"," Iss.1",,2015,Jan. "Junichi Tsuda,Hidetoshi Nishimori","Mean-field theory is exact for the random-field model with long-range interactions",,"Journal of the Physical Society of Japan",,"Volume 83","Number 7",,2014,June "Junichi Tsuda,Yuuki Yamanaka,Hidetoshi Nishimori","Energy gap at first-order quantum phase transitions: An anomalous case",,"Journal of the Physical Society of Japan",,"Volume 82","Number 11",,2013,Oct.