Monday, April 16, 2012

1204.2913 (Garima Mishra et al.)

Dynamical phase transition of a periodically driven DNA    [PDF]

Garima Mishra, Poulomi Sadhukhan, Somendra M Bhattacharjee, Sanjay Kumar
Replication and transcription are two important processes in living systems. To execute such processes, various proteins work far away from equilibrium in a staggered way. Motivated by this, aspects of hysteresis during unzipping of DNA under a periodic drive in non-equilibrium conditions are studied. A steady state phase diagram of a driven DNA, which is amenable to verification in force spectroscopic experiments, is proposed. As a two state system, we also compare the results of DNA with that of an Ising magnet under an asymmetrical variation of magnetic field.
View original: http://arxiv.org/abs/1204.2913

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