Direct evidence of the discontinuous character of the Kosterlitz-Thouless jump

@article{Minnhagen2003DirectEO,
  title={Direct evidence of the discontinuous character of the Kosterlitz-Thouless jump},
  author={P. Minnhagen and B. Kim},
  journal={Physical Review B},
  year={2003},
  volume={67},
  pages={172509}
}
  • P. Minnhagen, B. Kim
  • Published 2003
  • Physics
  • Physical Review B
  • It is numerically shown that the discontinuous character of the helicity modulus of the two-dimensional XY model at the Kosterlitz-Thouless (KT) transition can be directly related to a higher-order derivative of the free energy without presuming any a priori knowledge of the nature of the transition. It is also suggested that this higher-order derivative is of intrinsic interest in that it gives an additional characteristic of the KT transition which might be associated with a universal number… CONTINUE READING
    23 Citations
    Topological and Emergent Phenomena in Lattice BKT Systems
    • 1
    • Highly Influenced
    • PDF
    Universality away from critical points in two-dimensional phase transitions.
    • 33
    • PDF