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Random deposition of particles: simulation of the real world

Explore the hidden rules governing the growth of snow particles on a window through computer simulation. Investigate the behavior of Ag on Pt at 110K, using ballistic deposition and analyzing L=200, 35000 particles. Measure surface roughness and saturation of width over time. Discover the cross-over time and how it relates to system size. Achieve curve collapse by using proper units of length and time. Study 2D growth and diffusion-limited aggregation.

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Random deposition of particles: simulation of the real world

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  1. Random deposition of particles: simulation of the real world

  2. Snow particles falling on a window

  3. Ag on Pt at 110K

  4. Use computer simulation to find out the hidden rules behind the growth

  5. Ballistic deposition

  6. L=200 35000 particles <h(t)> ~ t

  7. Surface roughness v.s. time Saturation of the width Cross-over

  8. Both the cross-over time and the surface roughness depends on system size L

  9. With proper units of length and time, all the curves can be “collapsed” to the same curve

  10. 2-dim growth Diffusion-limited aggregation

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