Mass separation in an asymmetric channel

  title={Mass separation in an asymmetric channel},
  author={Narender Khatri and P. S. Burada},
  journal={Physical Review E},
We present a mechanism to sort out particles of different masses in an asymmetric channel, where the entropic barriers arise naturally and control the diffusion of these particles. When particles are subjected to an oscillatory force, with the scaled amplitude a and frequency ω, the mean particle velocity exhibits a bell-shaped behavior as a function of the particle mass, indicating that particles with an optimal mass mop drift faster than other particles. By tuning a and ω, we get an empirical… Expand

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