Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Sobreiro, R. F."'
In this work we consider the Einstein-Hilbert action in the first order order formalism coupled to Dirac spinors. From the little group symmetry, we derive the corresponding Bargmann-Wigner current which is conserved but not gauge invariant. Therefor
Externí odkaz:
http://arxiv.org/abs/2110.09363
Recently, a new procedure to quantize the $SU(N)$ Yang-Mills theory in the nonperturbative regime was proposed. The idea is to divide the configuration space $\{A_\mu\}$ into sectors labeled by different topological degrees of freedom and fix the gau
Externí odkaz:
http://arxiv.org/abs/2108.11361
Publikováno v:
Phys. Rev. D 103, 114010 (2021)
Recently, based on a new procedure to quantize the theory in the continuum, it was argued that Singer's theorem points towards the existence of a Yang-Mills ensemble. In the new approach, the gauge fields are mapped into an auxiliary field space used
Externí odkaz:
http://arxiv.org/abs/2012.01952
Publikováno v:
Phys. Rev. D 102, 074029 (2020)
In this work we investigate the effects of the Gribov prescription to get rid of zero-modes of the Faddeev-Popov operator, at one-loop order in perturbation theory, in the Landau-DeWitt gauge. Quantum fluctuations are taken around a transverse backgr
Externí odkaz:
http://arxiv.org/abs/2008.09031
Publikováno v:
Phys. Rev. D 101, 085007 (2020)
In this work, we analyzed a recent proposal to detect $SU(N)$ continuum Yang-Mills sectors labeled by center vortices, inspired by Laplacian-type center gauges in the lattice. Initially, after the introduction of appropriate external sources, we obta
Externí odkaz:
http://arxiv.org/abs/2002.02343
Autor:
Dudal, D., Felix, C. P., Junqueira, O. C., Montes, D. S., Pereira, A. D., Sadovski, G., Sobreiro, R. F., Tomaz, A. A.
We study the Gribov problem in four-dimensional topological Yang-Mills theories following the Baulieu-Singer approach in the (anti-)self-dual Landau gauges. This is a gauge-fixed approach that allows to recover the topological spectrum, as first cons
Externí odkaz:
http://arxiv.org/abs/1907.05460
Publikováno v:
Phys. Rev. D 98, 105017 (2018)
Quantum properties of topological Yang-Mills theory in (anti-)self-dual Landau gauge were recently investigated by the authors. We extend the analysis of renormalizability for two generalized classes of gauges; each of them depending on one gauge par
Externí odkaz:
http://arxiv.org/abs/1807.01517
Publikováno v:
Phys. Rev. D 98, 021701 (2018)
We prove that all connected n-point Green functions of four-dimensional topological Yang-Mills theories quantized in the (anti-)self-dual Landau gauges are tree-level exact, i.e. there are no radiative corrections in this gauge choice.
Comment:
Comment:
Externí odkaz:
http://arxiv.org/abs/1805.01850
Publikováno v:
Phys. Rev. D 96, 085008 (2017)
We reconsider the renormalizability of topological Yang-Mills field theories in (anti-)self-dual Landau gauges. By employing algebraic renormalization techniques we show that there is only one independent renormalization. Moreover, due to the rich se
Externí odkaz:
http://arxiv.org/abs/1707.06666
Publikováno v:
Phys. Lett. B775 (2017) 277
Sound waves on a fluid stream, in a de Laval nozzle, are shown to correspond to quasinormal modes emitted by black holes that are physical solutions in a quadratic curvature gravity with cosmological constant. Sound waves patterns in transsonic regim
Externí odkaz:
http://arxiv.org/abs/1705.04877