Zobrazeno 1 - 10
of 881
pro vyhledávání: '"Große, H."'
Publikováno v:
Journal of Physics: Conference Series; 2024, Vol. 2912 Issue 1, p1-8, 8p
Autor:
Grosse, H., Steinacker, H.
Publikováno v:
JHEP0608:008,2006
We study the quantization of the noncommutative selfdual \phi^3 model in 4 dimensions, by mapping it to a Kontsevich model. The model is shown to be renormalizable, provided one additional counterterm is included compared to the 2-dimensional case wh
Externí odkaz:
http://arxiv.org/abs/hep-th/0603052
Autor:
Grosse, H., Steinacker, H.
Publikováno v:
Nucl.Phys.B746:202-226,2006
We point out that the noncommutative selfdual phi^3 model can be mapped to the Kontsevich model, for a suitable choice of the eigenvalues in the latter. This allows to apply known results for the Kontsevich model to the quantization of the field theo
Externí odkaz:
http://arxiv.org/abs/hep-th/0512203
Autor:
Grosse, H., Kornexl, M.
Publikováno v:
Lett.Math.Phys. 63 (2003) 73-83
We study the Landau-problem on the $\theta$-deformed two-torus and use well-known projective modules to obtain perturbed spectra. For a strong magnetic field B the problem can be restricted to one particular Landau-level. First we represent generator
Externí odkaz:
http://arxiv.org/abs/quant-ph/0210042
Publikováno v:
Eur.Phys.J.C29:133-141,2003
As argued previously, amplitudes of quantum field theories on noncommutative space and time cannot be computed using naive path integral Feynman rules. One of the proposals is to use the Gell-Mann--Low formula with time-ordering applied before perfor
Externí odkaz:
http://arxiv.org/abs/hep-th/0209253
Autor:
Bichl, A. A., Ertl, M., Gerhold, A., Grimstrup, J. M., Grosse, H., Popp, L., Putz, V., Schweda, M., Wulkenhaar, R.
Publikováno v:
Int.J.Mod.Phys. A19 (2004) 4231-4250
The quantization of the non-commutative N=1, U(1) super-Yang-Mills action is performed in the superfield formalism. We calculate the one-loop corrections to the self-energy of the vector superfield. Although the power-counting theorem predicts quadra
Externí odkaz:
http://arxiv.org/abs/hep-th/0203141
Autor:
Grimstrup, J. M., Grosse, H., Popp, L., Putz, V., Schweda, M., Wickenhauser, M., Wulkenhaar, R.
Publikováno v:
Europhys.Lett. 67 (2004) 186-190
We analyse the IR-singularities that appear in a noncommutative scalar quantum field theory on $\mathcal{E}_4$. We demonstrate with the help of the quadratic one-loop effective action and an appropriate field redefinition that no IR-singularities exi
Externí odkaz:
http://arxiv.org/abs/hep-th/0202093
Publikováno v:
Eur.Phys.J.C24:485-489,2002; Eur.Phys.J.C24:491-494,2002
In this letter we apply the methods of our previous paper hep-th/0108045 to noncommutative fermions. We show that the fermions form a spin-1/2 representation of the Lorentz algebra. The covariant splitting of the conformal transformations into a fiel
Externí odkaz:
http://arxiv.org/abs/hep-th/0110231
Publikováno v:
Eur.Phys.J.C24:165-176,2002
We show that the noncommutative Yang-Mills field forms an irreducible representation of the (undeformed) Lie algebra of rigid translations, rotations and dilatations. The noncommutative Yang-Mills action is invariant under combined conformal transfor
Externí odkaz:
http://arxiv.org/abs/hep-th/0108045
Publikováno v:
J.Geom.Phys. 43 (2002) 205-240
We study the second quantization of field theory on the q-deformed fuzzy sphere for real q. This is performed using a path-integral over the modes, which generate a quasiassociative algebra. The resulting models have a manifest U_q(su(2)) symmetry wi
Externí odkaz:
http://arxiv.org/abs/hep-th/0103164