## 摘要

We consider force-induced unzipping transition for a heterogeneous DNA model with a correlated base sequence. Both finite-range and long-range correlated situations are considered. It is shown that finite-range correlations increase stability of DNA with respect to the external unzipping force. Due to long-range correlations the number of unzipped base pairs displays two widely different scenarios depending on the details of the base sequence: either there is no unzipping phase transition at all, or the transition is realized via a sequence of jumps with magnitude comparable to the size of the system. Both scenarios are different from the behavior of the average number of unzipped base pairs (non-self-averaging). The results can be relevant for explaining the biological purpose of correlated structures in DNA.

原文 | ???core.languages.en_GB??? |
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頁（從 - 到） | 16 |

頁數 | 1 |

期刊 | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |

卷 | 69 |

發行號 | 6 |

DOIs | |

出版狀態 | 已出版 - 2004 |