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Energy barriers for flux lines in three dimensions

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Abstract

I determine the scaling behavior of the free energy barriers encountered by a flux line in moving through a three-dimensional random potential. A combination of numerical simulations and analytic arguments suggests that these barriers scale with the length of the line in the same way as the fluctuation in the free energy.

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Communicated by M. Kardar

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Drossel, B. Energy barriers for flux lines in three dimensions. J Stat Phys 82, 431–441 (1996). https://doi.org/10.1007/BF02189238

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Key Words

  • Flux lines
  • random media
  • energy barriers
  • glassy systems