منابع مشابه
Generalized 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 کاملGauge Fixing in the Partition Function for Generalized Quantum Dynamics
We discuss the problem of gauge fixing for the partition function in generalized quantum (or trace) dynamics, deriving analogs of the De WittFaddeev-Popov procedure and of the BRST invariance familiar in the functional integral context.
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 کاملGauge Fixing and BFV Quantization
Nonsingularity conditions are established for the BFV gauge-fixing fermion which are sufficient for it to lead to the correct path integral for a theory with constraints canonically quantized in the BFV approach. The conditions ensure that anticommutator of this fermion with the BRST charge regularises the path integral by regularising the trace over non-physical states in each ghost sector. Th...
متن کاملRemarks on Lattice Gauge Fixing
In the lattice gauge theories where the links belong to a compact group, the gauge fixing is necessary only in the case of the measure of a gauge dependent operator. An expression similar to (1) but without having gauge fixed the links, defines the expectation value of a gauge independent operator. Moreover, in a lattice simulation there is no need to compute the Faddeev-Popov determinant becau...
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: Physics Letters B
سال: 1997
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(97)00824-1