Torsion and entropy driven denaturation of DNA |
| |
Authors: | Subhamoy Singha Roy Pratul Bandyopadhyay |
| |
Institution: | 1. Department of Physics, JIS College of Engineering (Autonomous), West Bengal University of Technology, Kalyani, Nadia 741235, India;2. Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B.T. Road, Kolkata 700108, India |
| |
Abstract: | A unified theory of the denaturation transition having torsion energy as the control parameter has been formulated here in the framework of the mapping of a DNA molecule onto a Heisenberg spin system. The torsion energy incorporates the torque, tension and temperature, the latter being associated with the twist angle. The denaturation transition can be mapped onto the quantum phase transition induced by a quench when the temperature effect is incorporated in the quench time and torsion takes the role of the external field. The denaturation transition occurs when the entanglement entropy of the spin system vanishes. |
| |
Keywords: | Torsion Entanglement entropy Denaturation |
本文献已被 ScienceDirect 等数据库收录! |
|