Zobrazeno 1 - 10
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pro vyhledávání: '"Gieres, Francois"'
Autor:
Gieres, Francois
Publikováno v:
Fortschr. Phys. 70 (2022) 7-8, 2200078
For classical relativistic field theory in Minkowski space-time, the addition of a superpotential term to a conserved current density is trivial in the sense that it does not modify the local conservation law nor change the conserved charge, though i
Externí odkaz:
http://arxiv.org/abs/2205.01459
Autor:
Gieres, Francois
Publikováno v:
SciPost Phys. Lect. Notes 77 (2023)
We review in simple terms the covariant approaches to the canonical formulation of classical relativistic field theories (in particular gauge field theories and general relativity) and we discuss the relationships between these approaches as well as
Externí odkaz:
http://arxiv.org/abs/2109.07330
Autor:
Blaschke, Daniel N., Gieres, Francois
Publikováno v:
Nucl. Phys. B 965 (2021) 115366
We address the Hamiltonian formulation of classical gauge field theories while putting forward results some of which are not entirely new, though they do not appear to be well known. We refer in particular to the fact that neither the canonical energ
Externí odkaz:
http://arxiv.org/abs/2004.14406
Autor:
Blaschke, Daniel N., Gieres, Francois, Hohenegger, Stefan, Schweda, Manfred, Wohlgenannt, Michael
Publikováno v:
SIGMA 14 (2018), 133, 35 pages
We discuss the formulation of classical field theoretical models on $n$-dimensional noncommutative space-time defined by a generic associative star product. A simple procedure for deriving conservation laws is presented and applied to field theories
Externí odkaz:
http://arxiv.org/abs/1806.02131
Publikováno v:
Nucl. Phys. B 912, 192 (2016)
We give an introduction to, and review of, the energy-momentum tensors in classical gauge field theories in Minkowski space, and to some extent also in curved space-time. For the canonical energy-momentum tensor of non-Abelian gauge fields and of mat
Externí odkaz:
http://arxiv.org/abs/1605.01121
Publikováno v:
Eur. Phys. J. C75:284, 2015
We study the properties of the energy-momentum tensor of gauge fields coupled to matter in non-commutative (Moyal) space. In general, the non-commutativity affects the usual conservation law of the tensor as well as its transformation properties (gau
Externí odkaz:
http://arxiv.org/abs/1502.03765
Publikováno v:
SIGMA 10 (2014), 099, 21 pages
In analogy to Wong's equations describing the motion of a charged relativistic point particle in the presence of an external Yang-Mills field, we discuss the motion of such a particle in non-commutative space subject to an external $U_\star(1)$ gauge
Externí odkaz:
http://arxiv.org/abs/1403.0255
Publikováno v:
Eur. Phys. J. C73:2566, 2013
In a recent work a modified BPHZ scheme has been introduced and applied to one-loop Feynman graphs in non-commutative phi^4-theory. In the present paper, we first review the BPHZ method and then we apply the modified BPHZ scheme as well as Zimmermann
Externí odkaz:
http://arxiv.org/abs/1307.4650
Autor:
Blaschke, Daniel N., Garschall, Thomas, Gieres, Francois, Heindl, Franz, Schweda, Manfred, Wohlgenannt, Michael
Publikováno v:
Eur. Phys. J. C73:2262, 2013
This paper addresses three topics concerning the quantization of non-commutative field theories (as defined in terms of the Moyal star product involving a constant tensor describing the non-commutativity of coordinates in Euclidean space). To start w
Externí odkaz:
http://arxiv.org/abs/1207.5494
Autor:
Blaschke, Daniel N., Gieres, Francois, Kronberger, Erwin, Reis, Thomas, Schweda, Manfred, Sedmik, Rene I. P.
Publikováno v:
JHEP 0811:074,2008
In this paper we elaborate on the translation-invariant renormalizable Phi^4 theory in 4-dimensional non-commutative space which was recently introduced by the Orsay group. By explicitly performing Feynman graph calculations at one loop and higher or
Externí odkaz:
http://arxiv.org/abs/0807.3270