Quantum coherence, hydrogen bonds tunneling

In such a way we have reduced our consideration to the problem of one-domain ferromagnetic particle with anisotropy energy described by equations (457) or (460). The problem of the macroscopic and mesoscopic quantum coherence which correspond to the tunnel switching of the magnetic moment between the two equilibrium directions was studied by Garg and Kim [332] in detail. This means that we may apply their results to calculate the tunneling frequency in the case of the hydrogen-bonded chain. Thus the Euclidean action SPe becomes... 

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