Bosonic type S matrix, vacuum instability and CDD ambiguities

Mar, 1999
27 pages
Published in:
  • Nucl.Phys.B 578 (2000) 527-551
e-Print:
Report number:
  • ISAS-EP-99-23

Citations per year

1999200520112017202302468
Abstract:
We consider the simplest bosonic-type S-matrix which is usually regarded as unphysical due to the complex values of the finite volume ground state energy. While a standard quantum field theory interpretation of such a scattering theory is precluded, we argue that the physical situation described by this S-matrix is of a massive Ising model perturbed by a particular set of irrelevant operators. The presence of these operators drastically affects the stability of the original vacuum of the massive Ising model and its ultraviolet properties.
Note:
  • version to appear in Nucl. Phys. B
  • S-matrix
  • vacuum state: stability
  • Ising model: massive
  • energy levels
  • field theory: conformal
  • thermodynamics: Bethe ansatz
  • form factor
  • scaling
  • critical phenomena