Zobrazeno 1 - 10
of 14
pro vyhledávání: '"ZENKIN, S. V."'
Autor:
Zenkin, S. V.
We demonstrate that in the topologically trivial gauge sector the Ginsparg-Wilson relation for lattice Dirac operators admits an exactly gauge invariant path integral formulation of the Weyl fermions on a lattice.
Comment: 7 pages, latex, no fig
Comment: 7 pages, latex, no fig
Externí odkaz:
http://arxiv.org/abs/hep-lat/9809033
Autor:
Zenkin, S. V.
Publikováno v:
Phys.Rev. D58 (1998) 057505
The index theorem is employed to extend the no-go theorem for lattice chiral Dirac fermions to translation non-invariant and non-local formulations.
Comment: 6 pages, latex, no figures; presentation is improved, references are added, to appear i
Comment: 6 pages, latex, no figures; presentation is improved, references are added, to appear i
Externí odkaz:
http://arxiv.org/abs/hep-lat/9803002
Publikováno v:
Nucl.Phys.Proc.Suppl. 63 (1998) 602-604
We analyse stability of almost massless Dirac mode in gauge models with boundary (domain wall) fermions, and consider the possibility of decoupling one of its chiral component by giving it a Majorana mass of the order of the inverse lattice spacing.
Externí odkaz:
http://arxiv.org/abs/hep-lat/9709058
Publikováno v:
Nucl.Phys. B508 (1997) 715-727
We examine the lattice boundary formulation of chiral fermions with either an explicit Majorana mass or a Higgs-Majorana coupling introduced on one of the boundaries. We demonstrate that the low-lying spectrum of the models with an explicit Majorana
Externí odkaz:
http://arxiv.org/abs/hep-lat/9705001
Autor:
Zenkin, S. V.
Publikováno v:
Nucl.Phys.Proc.Suppl. 53 (1997) 671-676
Considering as an example a simple lattice ansatz for the chiral fermion determinant, we demonstrate that even very mild violation of gauge invariance by the determinant at finite lattice spacing leads to the need for another scale in the full gauge
Externí odkaz:
http://arxiv.org/abs/hep-lat/9607017
Autor:
Tominaga, S., Zenkin, S. V.
Publikováno v:
Phys.Rev. D50 (1994) 3387-3398; Addendum-ibid. D53 (1996) 6674-6677
We develop analytical technique for examining phase structure of $Z_2$, $U(1)$, and $SU(2)$ lattice Higgs-Yukawa systems with radially frozen Higgs fields and chirally invariant lattice fermion actions. The method is based on variational mean field a
Externí odkaz:
http://arxiv.org/abs/hep-lat/9403003
Publikováno v:
Prog.Theor.Phys. 92 (1994) 669-686
We derive general form of finite-dimensional approximations of path integrals for both bosonic and fermionic canonical systems in terms of symbols of operators determined by operator ordering. We argue that for a system with a given quantum Hamiltoni
Externí odkaz:
http://arxiv.org/abs/hep-th/9401063
Autor:
ZENKIN, S. V.
Publikováno v:
Quarks '90 - Proceedings of the International Seminar; 1991, p67-73, 7p
