Solitary excitations in deoxyribonuclei acid (DNA) double helices

Phys. Rev. A 30, 474 – Published 1 July 1984
S. Yomosa


Dynamical features of solitary excitations in deoxyribonuclei acid (DNA) double helices are described by a revised theory in which the H-bonding energy between complementary base pairs has a more reasonable form. Four modes of sine-Gordon solitons which predict the existence of the open states in DNA double helices are found. By using the statistical-mechanical formalism which has been established previously, the average soliton number density in DNA double helices is estimated as a function of temperature and compared with the experimental results.


  • Received 21 June 1983
  • Revised 27 February 1984
  • Published in the issue dated July 1984

© 1984 The American Physical Society

Authors & Affiliations

S. Yomosa

  • Sugiyama Jogakuen University, Nagoya 464, Japan

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