Study of the asymptotic freedom of 2D Yukawa models on the lattice
✍ Scribed by A.K. De; E. Focht; W. Franzki; J. Jersák; M.A. Stephanov
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 515 KB
- Volume
- 308
- Category
- Article
- ISSN
- 0370-2693
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We consider a particular four state spin system composed of two Ising spins (sxr rX) with independent hopping parameters KI, Kz, coupled by a bilinear Yukawa term, ysxax. The Yukawa term is solely responsible for breaking the global 22 x ZZ symmetry down to Z2. This model is intended as an illustrat
A unitary transformation is used to renormalize the one-space dimensional Yukawa Model in a box. A momentum cut-off dependent sequence of unitary transformations is constructed such that weak limit matrix elements of the transformed Hamiltonian exist between a dense set of states as matrix elements