Two Reasons Why the Davydov Soliton May Be Thermally Stable After All
- 21 November 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (21) , 2927-2930
- https://doi.org/10.1103/physrevlett.73.2927
Abstract
Davydov has proposed a mechanism for energy transfer in proteins, according to which the energy liberated in an enzymatic reaction can be stored and transported in the form of a soliton. In recent years a debate has been going on concerning the thermal stability of the Davydov soliton. Here it is shown, first, that the two-quantum state is visibly more stable than the one-quantum state, and, second, that the usual Langevin dynamics, whereby the thermal lifetime of the Davydov soliton is estimated, must be viewed as underestimating, possibly very strongly, the soliton lifetime.Keywords
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