Zobrazeno 1 - 10
of 4 185
pro vyhledávání: '"Siegel, W."'
Autor:
Irizarry-Gelpí, M. E., Siegel, W.
We apply the quantum mechanical (first-quantized) JWKB approximation to a two-body path integral describing the near-forward scattering of two relativistic, heavy, non-identical, scalar particles in $D$ spacetime dimensions. In contrast to the loop e
Externí odkaz:
http://arxiv.org/abs/1604.04450
Autor:
Siegel, W.
F-theory in its most general sense should be a theory defined on a worldvolume of higher dimension than the worldsheet, that reproduces string results perturbatively but includes nonperturbative supergravity solutions at the first-quantized level. Th
Externí odkaz:
http://arxiv.org/abs/1601.03953
Autor:
Siegel, W.
We consider a class of string-like models introduced previously where all modes are left-handed, all states are massless, T-duality is manifest, and only a finite number of orders in the string tension can appear. These theories arise from standard s
Externí odkaz:
http://arxiv.org/abs/1512.02569
Autor:
Siegel, W.
A formulation recently proposed [arXiv:1506.07706] as an alternative to the usual coset PSU(2,2|4)/USp(2,2)USp(4) for the superspace geometry of the Type IIB superstring on an AdS5xS5 background is shown to be a particular parametrization of this cos
Externí odkaz:
http://arxiv.org/abs/1506.08172
Autor:
Ju, C. -Y., Siegel, W.
Publikováno v:
Phys. Rev. D 90, 125004 (2014)
We re-derive semi-shortening conditions for four-dimensional superconformal field theory with a different approach. These conditions have similar patterns that can be generalized to weaker constraints, including all those of F. Dolan and H. Osborn. I
Externí odkaz:
http://arxiv.org/abs/1302.2515
Autor:
Siegel, W.
We review the relation between the "embedding" formalism and spinorial projective space. The latter is more convenient when treating spin (and indispensable for supersymmetry), as it maintains manifest conformal symmetry while using 4-dimensional ind
Externí odkaz:
http://arxiv.org/abs/1204.5679
Autor:
Siegel, W.
We first-quantize the superparticle describing free 10D IIB supergravity on AdS_5xS^5. We choose the worldline coordinate to be a combination of the bulk (spatial) coordinates of anti de Sitter space and the sphere. The Hamiltonian is independent of
Externí odkaz:
http://arxiv.org/abs/1005.5049
Autor:
Siegel, W.
We relate the 10D IIB superstring (primarily free supergravity) expanded about AdS_5\timesS^5 to 4D N=4 Yang-Mills directly in superspace. The sphere becomes the CFT internal space of projective superspace, plus a coordinate counting the number of su
Externí odkaz:
http://arxiv.org/abs/1005.2317
Autor:
Siegel, W.
Analysis of string interactions indicates a weakening of gravity at the string length scale, thus avoiding black holes and their singularities.
Comment: 5 pages, TeX; added reference
Comment: 5 pages, TeX; added reference
Externí odkaz:
http://arxiv.org/abs/hep-th/0309093
Autor:
Siegel, W.
We give some supersymmetric wave solutions, both chiral (selfdual) and nonchiral, to interacting supersymmetric theories in four dimensions.
Comment: 8 pages, TeX
Comment: 8 pages, TeX
Externí odkaz:
http://arxiv.org/abs/hep-th/0206150