The Viscous and External Forces Effect on the Thermal Denaturation of Peyrard-Bishop Model

W. Hidayat, A. Sulaiman, S. Viridi, F. P. Zen
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引用次数: 4

Abstract

The viscous and the external forces effect on thermal DNA denaturation of Peyrard-Bishop model are investigated. The calculation of the partition function to determine the stretching of hydrogen bonds has been performed by path integral Monte-Carlo. The result shows that the interaction between the viscous potential and external forces prevent DNA to unzip perfectly but allows DNA to split at a certain distance from its original position. The increase of the viscosity coefficient will reduce the melting temperature. The result obtained also showed how at certain temperature external potential give dominant contribution in denaturation, higher even than the viscosity effect.
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粘性和外力对Peyrard-Bishop模型热变性的影响
研究了黏性和外力对peyard - bishop模型DNA热变性的影响。用路径积分蒙特卡罗方法计算了确定氢键拉伸的配分函数。结果表明,粘性势和外力之间的相互作用阻止DNA完美地解压缩,但允许DNA在距离其原始位置一定距离处分裂。黏度系数的增大会降低熔融温度。结果还表明,在一定温度下,外部电位对变性的作用占主导地位,甚至高于粘度效应。
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