Stochastic resonance during a polymer translocation process
作者： Debasish Mondal , Murugappan Muthukumar , None
DOI: 10.1063/1.4945559
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摘要: We have studied the occurrence of stochastic resonance when a flexible polymer chain undergoes single-file translocation through nano-pore separating two spherical cavities, under time-periodic external driving force. The is controlled by free energy barrier determined length, pore pore-polymer interaction, and confinement inside donor receiver cavities. force characterized frequency amplitude. By combining Fokker-Planck formalism for two-state model resonance, we derived analytical formulas criteria emergence during translocation. show that no possible if purely entropic in nature. exhibits only presence an threshold terms polymer-pore interactions. Once feasible, entropy controls optimal synchronization conditions significantly.
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