+**Ea0** often denotes a primordial, baseline state within a system, representing its initial or ground energy level. It signifies the point of [Origin](/wiki/Origin) or the [Ground State](/wiki/Ground_State) from which all subsequent configurations arise.
+## See also
+- [Energy Level](/wiki/Energy_Level)
+- [Initial Conditions](/wiki/Initial_Conditions)
+- [Quantum Mechanics](/wiki/Quantum_Mechanics)
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