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cond-mat.stat-mech2026
Critical Scaling of Finite-Size Fluctuations around Marginal Stability in Long-Range Hamiltonian Systems
Yoshiyuki Y. Yamaguchi, Julien Barré
Finite size fluctuations are a crucial ingredient in kinetic theory of long-range interacting collisionless systems. In this Letter, we introduce a phenomenological theory which pr…
cond-mat.stat-mech2025
Finite-size fluctuations for stochastic coupled oscillators: A general theory
Rupak Majumder, Julien Barré, Shamik Gupta
Phase transitions, sharp in the thermodynamic limit, get smeared in finite systems where macroscopic order-parameter fluctuations dominate. Achieving a coherent and complete theore…