Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Konjik, Nikola"'
Within the framework of noncommutative (NC) deformation of gauge field theory by twist, we first rederive the NC scalar and gauge field model from our previous papers and then generalize it to the second order in the Seiberg-Witten (SW) map. It turns
Externí odkaz:
http://arxiv.org/abs/2404.03755
We study a noncommutative (NC) deformation of a charged scalar field, minimally coupled to a classical (commutative) Reissner Nordstrom like background. The deformation is performed via a particularly chosen Killing twist to ensure that the geometry
Externí odkaz:
http://arxiv.org/abs/2306.05290
The homotopy algebraic formalism of braided noncommutative field theory is used to define the explicit example of braided electrodynamics, that is, $\mathsf{U}(1)$ gauge theory minimally coupled to a Dirac fermion. We construct the braided $L_\infty$
Externí odkaz:
http://arxiv.org/abs/2302.10713
Publikováno v:
Eur. Phys. J. C 83 (2023) 387
Some noncommutative (NC) theories posses a certain type of dualities that are implicitly built within their structure. In this paper we establish still another example of this kind. More precisely, we show that the noncommutative U(1) gauge theory co
Externí odkaz:
http://arxiv.org/abs/2208.06069
Autor:
Ćirić, Marija Dimitrijević, Konjik, Nikola, Radovanović, Voja, Szabo, Richard J., Toman, Miša
Using the recently developed formalism of braided noncommutative field theory, we construct an explicit example of braided electrodynamics, that is, a noncommutative $U(1)$ gauge theory coupled to a Dirac fermion. We construct the braided $L_\infty$-
Externí odkaz:
http://arxiv.org/abs/2204.06448
Black hole (BH) perturbation is followed by a ringdown phase which is dominated by quasinormal modes (QNM). These modes may provide key signature of the gravitational waves. The presence of a deformed spacetime structure may distort this signal. In o
Externí odkaz:
http://arxiv.org/abs/1910.13342
Publikováno v:
Phys. Rev. D 101, 116009 (2020)
In our previous work [18] we constructed a model of a noncommutative, charged and massive scalar field based on the angular twist. Then we used this model to analyze the motion of the scalar field in the Reissner-Nordstr\"om black hole background. In
Externí odkaz:
http://arxiv.org/abs/1904.04053
Autor:
Ciric, Marija Dimitrijevic, Konjik, Nikola, Kurkov, Maxim A., Lizzi, Fedele, Vitale, Patrizia
Publikováno v:
Phys. Rev. D 98, 085011 (2018)
We consider a noncommutative field theory with space-time $\star$-commutators based on an angular noncommutativity, namely a solvable Lie algebra: the Euclidean in two dimension. The $\star$-product can be derived from a twist operator and it is show
Externí odkaz:
http://arxiv.org/abs/1806.06678
In our previous work we have constructed a model of noncommutative (NC) gravity based on $SO(2,3)_\star$ gauge symmetry. In this paper we extend the model by adding matter fields: fermions and a $U(1)$ gauge field. Using the enveloping algebra approa
Externí odkaz:
http://arxiv.org/abs/1804.00608
Publikováno v:
Class.Quant.Grav. 35 (2018) no.17, 175005
Aiming to search for a signal of space-time noncommutativity, we study a quasinormal mode spectrum of the Reissner Nordstr\"om black hole in the presence of a deformed space-time structure. In this context we study a noncommutative (NC) deformation o
Externí odkaz:
http://arxiv.org/abs/1708.04066