A zero-temperature study of vortex mobility in two-dimensional vortex glass models

  title={A zero-temperature study of vortex mobility in two-dimensional vortex glass models},
  author={Petter Holme and Peter Olsson},
Three different vortex glass models are studied by examining the energy barrier against vortex motion across the system. In the two-dimensional gauge glass this energy barrier is found to increase logarithmically with system size which opens up for the existence of a low-temperature phase with zero resistivity. Associated with the large-energy barriers is a breaking of ergodicity which explains why the well-established results from equilibrium studies could fail. The behavior of the more… 
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