81 citations · 108 across the 4 of their papers we have counts for
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Phase transitions in the frustrated Ising ladder with stoquastic and nonstoquastic catalysts
Kabuki Takada, Shigetoshi Sota, Seiji Yunoki +3
The role of nonstoquasticity in the field of quantum annealing and adiabatic quantum computing is an actively debated topic. We study a strongly-frustrated quasi-one-dimensional qu…
Mean-Field Solution of the Weak-Strong Cluster Problem for Quantum Annealing with Stoquastic and Non-Stoquastic Catalysts
Kabuki Takada, Yu Yamashiro, Hidetoshi Nishimori
We study the weak-strong cluster problem for quantum annealing in its mean-field version as proposed by Albash [Phys. Rev. A 99 (2019) 042334] who showed by numerical diagonalizati…
Exponential Enhancement of the Efficiency of Quantum Annealing by Non-Stochastic Hamiltonians
Hidetoshi Nishimori, Kabuki Takada
Non-stoquastic Hamiltonians have both positive and negative signs in off-diagonal elements in their matrix representation in the standard computational basis and thus cannot be sim…
Critical properties of dissipative quantum spin systems in finite dimensions
Kabuki Takada, Hidetoshi Nishimori
We study the critical properties of finite-dimensional dissipative quantum spin systems with uniform ferromagnetic interactions. Starting from the transverse-field Ising model coup…