Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Schweda, Manfred"'
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:
J. Phys. A: Math. Theor. 48 (2015) 365401
We elaborate in this paper a translation-invariant model for fermions in 4-dimensional noncommutative Euclidean space. The construction is done on the basis of the renormalizable noncommutative translation-invariant Phi4 theory introduced by R. Gurau
Externí odkaz:
http://arxiv.org/abs/1502.02992
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
In this paper we show the renormalizability of the translation invariant noncommutative Chern-Simons theory, motivated by the work done on noncommutative scalar field theory [06]. We add a new term to the bilinear part of the action. In addition, we
Externí odkaz:
http://arxiv.org/abs/1207.4591
Autor:
Blaschke, Daniel N., Garschall, Thomas, Heindl, Franz, Schweda, Manfred, Wohlgenannt, Michael
In this short letter, we rediscuss the model for non-commutative U(1) gauge theory presented in [arXiv:0912.2634] and argue that by treating the "soft-breaking terms" of that model in the realm of an extended BRST symmetry, a future renormalization p
Externí odkaz:
http://arxiv.org/abs/1104.0334
Autor:
Schweda, Manfred, Wohlgenannt, Michael
Publikováno v:
J.Phys.A44:085402,2011
In these notes, we aim at a precise definition of the tree level action for the noncommutative scalar and gauge field theories on four-dimensional canonically deformed Euclidean space. As tools to achieve this goal we employ power counting and normal
Externí odkaz:
http://arxiv.org/abs/1005.5107