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On the eta-invariant in the 4D chiral U(1) theory
V. Bornyakov, A. Hoferichter, G. Schierholz +1
In contrast to its counterpart in a vector theory, the effective action of a chiral gauge theory may have a non-vanishing imaginary part. It consists of the so-called Chern-Simons…
Lattice chiral fermions in the background of non-trivial topology
V. Bornyakov, A. Hoferichter, G. Schierholz +1
We address the problem of numerical simulations in the background non-trivial topology in the chiral Schwinger model. An effective fermionic action is derived which is in accord wi…
On the eta-invariant in the four dimensional chiral U(1) theory
V. Bornyakov, A. Hoferichter, G. Schierholz +1
The imaginary part of the effective action is investigated in the 4D chiral U(1) theory using the CFA.
Topical Results on Lattice Chiral Fermions in the CFA
V. Bornyakov, A. Hoferichter, G. Schierholz +1
We report new results on the lattice regularization of the chiral Schwinger model and the chiral U(1) model in four dimensions in the CFA.
Chiral Fermions on the Lattice
V. Bornyakov, G. Schierholz, A. Thimm
A recently proposed method for regularizing chiral gauge theories non-perturbatively is discussed in detail. The result is an effective action which can be computed from the lattic…
Lattice Chiral Schwinger Model: Selected Results
V. Bornyakov, G. Schierholz, A. Thimm
We discuss a method for regularizing chiral gauge theories. The idea is to formulate the gauge fields on the lattice, while the fermion determinant is regularized and computed in t…
Lattice Chiral Schwinger Model in the Continuum Formulation
V. Bornyakov, G. Schierholz, A. Thimm
We pursue further an approach to lattice chiral fermions in which the fermions are treated in the continuum. To render the effective action gauge invariant, counterterms have to be…