+Landau Theory offers a phenomenological framework to describe [Phase Transitions](/wiki/phase_transition), especially second-order ones. It posits an [Order Parameter](/wiki/order_parameter) that quantifies the system's emergent order, expanding its free energy in terms of this parameter near the critical point.
+## See also
+- [Order Parameter](/wiki/order_parameter)
+- [Phase Transition](/wiki/phase_transition)
+- [Critical Phenomena](/wiki/critical_phenomena)
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