منابع مشابه
Making chiral fermion actions (almost) gauge invariant using Laplacian gauge fixing
There are many proposals to describe chiral fermions on the lattice (see refs. [1,2] for recent reviews), which all appear to work when the fermions couple to smooth external gauge fields. When the gauge fields are dynamical, however, these approaches fail: e.g. because opposite handedness mirror fermions are generated dynamically [3], or because the chiral fermions are shielded from the gauge ...
متن کاملSolving Gauge Invariant Systems without Gauge Fixing : the Physical Projector in 0+1 Dimensional Theories
The projector onto gauge invariant physical states was recently constructed for arbitrary constrained systems. This approach, which does not require gauge fixing nor any additional degrees of freedom beyond the original ones—two characteristic features of all other available methods for quantising constrained dynamics—is put to work in the context of a general class of quantum mechanical gauge ...
متن کاملGeneralized Stochastic Gauge Fixing
We propose a generalization of the stochastic gauge fixing procedure for the stochastic quantization of gauge theories where not only the drift term of the stochastic process is changed but also the Wiener process itself. All gauge invariant expectation values remain unchanged. As an explicit example we study the case of an abelian gauge field coupled with three bosonic matter fields in 0+1 dim...
متن کاملLattice Chiral Gauge Theories through Gauge Fixing
After an introduction in which we review the fundamental difficulty in constructing lattice chiral gauge theories, we discuss the analytic and numerical evidence that abelian lattice chiral gauge theories can be non-perturbatively constructed through the gauge-fixing approach. While a complete non-abelian extension is still under construction, we also show how fermion-number violating processes...
متن کاملR-invariant Dilaton Fixing
We consider dilaton stabilization with R invariance, which insures a vanishing cosmological constant at the scale of stabilization. We construct a few models which accommodate weak gauge couplings with large or small gauge groups. Matter condensation plays a central role in the dilaton stabilization.
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2018
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x18500094