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cond-mat.stat-mech2025
Charge glass from supercooling topological-ordered liquid
Kouki Kimata, Harukuni Ikeda, Masafumi Udagawa
Topological order characterizes a class of quantum and classical many-body liquid states that escape the conventional classification by spontaneous symmetry breaking. Many properti…
cond-mat.stat-mech2025
Interaction-free ergodicity-breaking driven by temporally hyperuniform noise
Harukuni Ikeda
We show that norm-conserving spin models driven by temporally hyperuniform noise exhibit a sharp ergodicity-breaking transition in the absence of interactions. In the nonergodic ph…
cond-mat.stat-mech2025
Quantum fluctuations can enhance or reduce positional uncertainty at finite temperature
Harukuni Ikeda
The uncertainty principle guarantees a non-zero value for the positional uncertainty, , even without thermal fluctuations. This implies that qua…