Bosonic type S matrix, vacuum instability and CDD ambiguities
Mar, 199927 pages
Published in:
- Nucl.Phys.B 578 (2000) 527-551
e-Print:
- hep-th/9903072 [hep-th]
Report number:
- ISAS-EP-99-23
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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
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