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Low-temperature specific heat spectra considering nonextensive long-range correlated quasiperiodic DNA molecules

Authors
Journal
Physica A Statistical Mechanics and its Applications
0378-4371
Publisher
Elsevier
Publication Date
Volume
387
Issue
22
Identifiers
DOI: 10.1016/j.physa.2008.06.004
Keywords
  • Dna Molecule
  • Specific Heat
  • Long-Range Correlations
  • Quasiperiodic Structures

Abstract

Abstract We consider the low-temperature specific heat spectra of long-range correlated quasiperiodic DNA molecules using a q -gaussian distribution, and compare them with those considering the Boltzmann-Gibbs distribution. The energy spectra are calculated using the one-dimensional Schrödinger equation in a tight-binding approximation with the on-site energy exhibiting long-range disorder and non-random hopping amplitudes. We focus our attention at the low temperature region, where the specific heat spectra presents a logarithmic-periodic oscillations as a function of the temperature T around a mean value given by a characteristic dimension of the energy spectrum.

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