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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/121/05/0897-0904

    • Keywords

       

      Jarzynski theorem; non-Markovian bath; optical trap.

    • Abstract

       

      We propose a simple approach to derive an exact analytical expression of work distribution for a system consisting of a colloidal particle trapped in an optical harmonic potential well, which is being pulled at a constant velocity through a solution represented by a non-Markovian bath. The thermal environment is represented by a bath composed of an infinite set of harmonic oscillators, and a model Hamiltonian for the trapped colloidal particle is constructed by representing the interaction with the bathvia linear dissipative mechanism. We have studied the effects of pulling time, pulling speed, and the adiabatic limit. It is also observed that only at long time the total work is completely converted into dissipative work.

    • Author Affiliations

       

      Alok Samanta1 K Srinivasu1 Swapan K Ghosh1

      1. Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai 400 085

    • Dates

       
      Published
      September 2009

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