Lro in Lattice Systems of Linear Classical and Quantum Oscillators. Strong N-n Pair Quadratic Interaction

  • W. I. SKRYPNIK
  • Published 1999
A b s t r a c t For systems of one-component interacting oscillators on the d-dimensional lattice, d > 1, whose potential energy besides a large nearest-neighbour (n-n) ferromagnetic translation-invariant quadratic term contains small non-nearest-neighbour translation invariant term, an existence of a ferromagnetic long-range order for two valued lattice… CONTINUE READING