10 citations · 26 across the 15 of their papers we have counts for
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Quasi-local Frustration-Free Free Fermions
Shunsuke Sengoku, Hoi Chun Po, Haruki Watanabe
Recent studies have revealed that frustration-free models, expressed as sums of finite-range interactions or hoppings, exhibit several properties markedly different from those of f…
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…
Rigorous lower bound of the dynamical critical exponent of the Ising model
Rintaro Masaoka, Tomohiro Soejima, Haruki Watanabe
We study the kinetic Ising model under Glauber dynamics and establish an upper bound on the spectral gap for finite systems. This bound implies the critical exponent inequality $z…