  We showed that quantum mechanical superposition can sustain in the process of
ion transfer in protein membrane for a substantial period, in spite of the
presence of the interactions with environmental modes of molecular vibration.
The spectral temperature, as defined in quantum thermodynamical framework plays
a significant role in maintaining the coherence. The ratio of decoherence time
and dwell time has been calculated, which can be directly related to the degree
of coherence. The results shead new light to build quantum information system
of entangled ionic states in the voltage gated biological channels.
