# KMS condition The Kobo-Martin-Schwinger (KMS) condition ensures $n$-point functions satisfy the appropriate fluctuation-dissipation theorems. ## Refs - original: - [[1957#Kubo]] and [[1959#Martin, Schwinger]] - KMS condition in different inertial frames: - [[2024#Passegger, Verch]] - fixing the thermal [[0103 Two-point functions|two-point function]] using KMS - [[2025#Buric, Gusev, Parnachev]]