15 citations · 65 across the 19 of their papers we have counts for
19 papers
Gauge theory for quantum XYZ spin glasses
C. Itoi, Y. Sakamoto
Nishimori's gauge theory is extended to the quantum XYZ -spin glass model in finite dimensions. This enables us to obtain useful correlation equalities, which show also that Duh…
Extended Series of Correlation Inequalities in Quantum Systems
Chigak Itoi, Hiroto Ishimori, Kota Sato +1
A systematic derivation provides extended series of correlation inequalities in quantum systems. Each order in truncated Taylor expansion of the spectral representation for the Duh…
Boundedness of Susceptibility in Spin Glass Transition of Transverse Field Mixed -spin Glass Models
Chigak Itoi, Yoshinori Sakamoto
Spontaneous symmetry breaking phenomena in the transverse field mixed -spin glass model in finite dimensions are studied with Nishimori's gauge theory. Useful identities in the…
Gauge theory for mixed -spin glasses
C. Itoi, Y. Sakamoto
Physical quantities in the mixed -spin glasses are evaluated with Nishimori's gauge theory and several variance inequalities. The -symmetry breaking and the replica…
Universality of replica-symmetry breaking in the transverse field Sherrington-Kirkpatrick model
C. Itoi, H. Ishimori, K. Sato +1
The existence theorem for replica-symmetry breaking (RSB) in the transverse field Sherrington-Kirkpatrick (SK) model is extended to the model with a general random exchange interac…
Expansion for quantum perturbations in random spin systems
C. Itoi, K. Horie, H. Shimajiri +1
Energy eigenstates in the random transverse field Edwards-Anderson (EA) model and the random bond quantum Heisenberg XYZ model in a -dimensional finite cubic lattice are obtaine…