PHASE STRUCTURE OF COMPACT LATTICE QED3 WITH MASSLESS FERMIONS
نویسندگان
چکیده
منابع مشابه
Exactly massless fermions on the Lattice
My talk at Lattice 98 essentially consisted of two parts : (1) The general solution of the Ginsparg-Wilson (GW) relation; (2) Some numerical results for the ( generalized ) NeubergerDirac fermion operator. In this writeup, due to the page limit, I confine my discussions to the second part of which I did not have enough time to cover in my talk. For the first part, I refer to ref. [5] and ref. [...
متن کاملRenormalization of lattice gauge theories with massless Ginsparg Wilson fermions
Using functional techniques, we prove, to all orders of perturbation theory, that lattice vector gauge theories with Ginsparg Wilson fermions are renormalizable. For two or more massless fermions, they satisfy a flavour mixing axial vector Ward identity. It involves a lattice specific part that is quadratic in the vertex functional and classically irrelevant. We show that it stays irrelevant un...
متن کاملStrongly coupled compact lattice QED with staggered fermions
We explore the compact U(1) lattice gauge theory with staggered fermions and gauge field action − ∑ P [β cos(ΘP ) + γ cos(2ΘP )], both for dynamical fermions and in the quenched approximation. (ΘP denotes the plaquette angle.) In simulations with dynamical fermions at various γ ≤ −0.2 on 64 lattices we find the energy gap at the phase transition of a size comparable to the pure gauge theory for...
متن کاملPhase Structure of Lattice QCD at Finite Density with Dynamical Fermions
We compare the chemical potential associated with the onset of non-zero baryon number density on 6 and 8 lattices at β = 5.1 and ma=0.01. We provide evidence for Z(3) tunnelling. We determine a critical chemical potential of μa ≃ 0.1 which is unexpectedly low. We also determine the dependence of the onset of the observed phase transition on the quark mass. The physically misleading result of th...
متن کاملWeyl fermions: Massless yet real.
863 news & views and patterning, opens up a wide range of new applications for hot-electron-driven chemistry. The LEE source might also prove a critical tool for obtaining a deeper nanoscale understanding of radiation chemistry and biology, and material degradation by high-energy radiation in general. The quantum description of spin-1/2 particles is given by the solutions of the Dirac equation....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Modern Physics Letters A
سال: 1993
ISSN: 0217-7323,1793-6632
DOI: 10.1142/s0217732393002373