The trick is not to have a voltage across the channel while it's transitioning states. For this reason, adiabatic circuits are typically "phased" such that any

The trick is not to have a voltage across the channel while it's transitioning states. For this reason, adiabatic circuits are typically "phased" such that any given adiabatic logic gate is either having its gates charged or discharged (by the previous logic gate), or current is passing through its channels to charge/discharge the next logic gate.