Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Schroers, B"'
Autor:
Papageorgiou, G, Schroers, B J
Publikováno v:
JHEP 1011:020,2010
We define a theory of Galilean gravity in 2+1 dimensions with cosmological constant as a Chern-Simons gauge theory of the doubly-extended Newton-Hooke group, extending our previous study of classical and quantum gravity in 2+1 dimensions in the Galil
Externí odkaz:
http://arxiv.org/abs/1008.0279
Publikováno v:
JHEP 1001:095, 2010
We propose an electric-magnetic symmetry group in non-abelian gauge theory, which we call the skeleton group. We work in the context of non-abelian unbroken gauge symmetry, and provide evidence for our proposal by relating the representation theory o
Externí odkaz:
http://arxiv.org/abs/0812.1230
Autor:
Majid, S, Schroers, B J
We explore in detail the role in euclidean 3d quantum gravity of quantum Born reciprocity or `semidualisation'. The latter is an algebraic operation defined using quantum group methods that interchanges position and momentum. Using this we are able t
Externí odkaz:
http://arxiv.org/abs/0806.2587
Publikováno v:
Nucl.Phys.B806:386-435,2009
We analyze the set of magnetic charges carried by smooth BPS monopoles in Yang-Mills-Higgs theory with arbitrary gauge group G spontaneously broken to a subgroup H. The charges are restricted by a generalized Dirac quantization condition and by an in
Externí odkaz:
http://arxiv.org/abs/0803.3376
Autor:
Schroers, B. J.
Publikováno v:
PoSQG-Ph:035,2007
Proposals that quantum gravity gives rise to non-commutative spacetime geometry and deformations of Poincare symmetry are examined in the context of (2+1)-dimensional quantum gravity. The results are expressed in five lessons, which summarise how the
Externí odkaz:
http://arxiv.org/abs/0710.5844
Autor:
Meusburger, C, Schroers, B J
Publikováno v:
Class.Quant.Grav. 22 (2005) 3689-3724
We propose a description of open universes in the Chern-Simons formulation of (2+1)-dimensional gravity where spatial infinity is implemented as a puncture. At this puncture, additional variables are introduced which lie in the cotangent bundle of th
Externí odkaz:
http://arxiv.org/abs/gr-qc/0505071
Autor:
Meusburger, C, Schroers, B J
Publikováno v:
Nucl.Phys. B738 (2006) 425-456
We explicitly determine the symplectic structure on the phase space of Chern-Simons theory with gauge group $G\ltimes g^*$ on a three-manifold of topology $R \times S$, where $S$ is a surface of genus $g$ with $n+1$ punctures. At each puncture additi
Externí odkaz:
http://arxiv.org/abs/hep-th/0505143
Autor:
Meusburger, C., Schroers, B. J.
Publikováno v:
Nucl.Phys. B706 (2005) 569-597
We study the action of the mapping class group of an oriented genus g surface with n punctures and a disc removed on a Poisson algebra which arises in the combinatorial description of Chern-Simons gauge theory when the gauge group is a semidirect pro
Externí odkaz:
http://arxiv.org/abs/hep-th/0312049
Autor:
Meusburger, C, Schroers, B J
Publikováno v:
Adv.Theor.Math.Phys. 7 (2004) 1003-1043
We quantise a Poisson structure on H^{n+2g}, where H is a semidirect product group of the form $G\ltimes\mathfrak{g}^*$. This Poisson structure arises in the combinatorial description of the phase space of Chern-Simons theory with gauge group $G\ltim
Externí odkaz:
http://arxiv.org/abs/hep-th/0310218
Autor:
Meusburger, C., Schroers, B. J.
Publikováno v:
Class.Quant.Grav. 20 (2003) 2193-2234
In the formulation of (2+1)-dimensional gravity as a Chern-Simons gauge theory, the phase space is the moduli space of flat Poincar\'e group connections. Using the combinatorial approach developed by Fock and Rosly, we give an explicit description of
Externí odkaz:
http://arxiv.org/abs/gr-qc/0301108