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395
Imperial/TP/2006/OC/01 AdS spacetimes from wrapped M5 branes
, 2006
"... We derive a complete geometrical characterisation of a large class of AdS3, AdS4 and AdS5 supersymmetric spacetimes in elevendimensional supergravity using Gstructures. These are obtained as special cases of a class of supersymmetric ..."
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We derive a complete geometrical characterisation of a large class of AdS3, AdS4 and AdS5 supersymmetric spacetimes in elevendimensional supergravity using Gstructures. These are obtained as special cases of a class of supersymmetric
On massless 4D Gravitons from Asymptotically AdS5 Spacetimes
, 2006
"... Preprint typeset in JHEP style HYPER VERSION ..."
Massless higher spins and holography
 Nucl. Phys. B644 (2002) 303, erratum Nucl. Phys. B660 (2003) 403 [hepth/0205131
"... We treat free large N superconformal field theories as holographic duals of higher spin (HS) gauge theories expanded around AdS spacetime with radius R. The HS gauge theories contain massless and light massive AdS fields. The HS current correlators are written in a crossing symmetric form including ..."
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Cited by 126 (8 self)
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We treat free large N superconformal field theories as holographic duals of higher spin (HS) gauge theories expanded around AdS spacetime with radius R. The HS gauge theories contain massless and light massive AdS fields. The HS current correlators are written in a crossing symmetric form including
Covariant NonCommutative SpaceTime
, 2014
"... We introduce a covariant noncommutative deformation of 3+1dimensional conformal field theory. The deformation introduces a shortdistance scale `p, and thus breaks scale invariance, but preserves all spacetime isometries. The noncommutative algebra is defined on spacetimes with nonzero constan ..."
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Cited by 1 (0 self)
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zero constant curvature, i.e. dS4 or AdS4. The construction makes essential use of the representation of CFT tensor operators as polynomials in an auxiliary polarization tensor. The polarization tensor takes active part in the noncommutative algebra, which for dS4 takes the form of so(5, 1), while for AdS4
Constraints on AdS5 Embeddings
"... We show that the embedding of either a static or a time dependent maximally 3symmetric brane with nonzero spatial curvature k into a noncompactified AdS5 bulk does not yield exponential suppression of the geometry away from the brane. Implications of this result for branelocalized gravity are di ..."
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are discussed. I. STATIC BRANES It was recently pointed out [1,2] that if our 4dimensional universe is a 3brane embedded in an infinite, noncompactified, 5dimensional bulk AdS5 spacetime, the AdS5 bulk geometry could then lead to an exponential suppression of the geometry in distance w away from the brane
Spacetime Quotients, Penrose Limits and Restoration of Conformal Symmetry
, 2002
"... In this paper we study the Penrose limit of AdS5 orbifolds. The orbifold can be either in the pure spatial directions or space and time directions. For the AdS5/Γ × S 5 spatial orbifold we observe that after the Penrose limit we obtain the same result as the Penrose limit of AdS5 × S 5 /Γ. We identi ..."
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In this paper we study the Penrose limit of AdS5 orbifolds. The orbifold can be either in the pure spatial directions or space and time directions. For the AdS5/Γ × S 5 spatial orbifold we observe that after the Penrose limit we obtain the same result as the Penrose limit of AdS5 × S 5 /Γ. We
Spacetime Quotients, Penrose Limits and Conformal Symmetry Restoration
, 2002
"... In this paper we study the Penrose limit of AdS5 orbifolds. The orbifold can be either in the pure spatial directions or space and time directions. For the AdS5/Γ × S 5 spatial orbifold we observe that after the Penrose limit we obtain the same result as the Penrose limit of AdS5 × S 5 /Γ. We identi ..."
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In this paper we study the Penrose limit of AdS5 orbifolds. The orbifold can be either in the pure spatial directions or space and time directions. For the AdS5/Γ × S 5 spatial orbifold we observe that after the Penrose limit we obtain the same result as the Penrose limit of AdS5 × S 5 /Γ. We
Comments on “Dirac theory in spacetime algebra”
, 2001
"... In contrast to formulations of the Dirac theory by Hestenes and by the current author, the formulation recently presented by W. P. Joyce [J. Phys. A: Math. Gen. 34 (2001) 1991–2005] is equivalent to the usual Dirac equation only in the case of vanishing mass. For nonzero mass, solutions to Joyce’s e ..."
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algebra (Clifford’s geometric algebra of Minkowski spacetime taken over the complex field) can be decomposed into the Dirac equation in the Hestenes form[2, 3, 4, 5] for mass +m plus another equation for mass −m. The purpose of this comment is to prove this claim and to discuss a few other aspects
KaluzaKlein Monopole in AdS Spacetime
, 2003
"... We construct analogs of the flat space KaluzaKlein monopoles in locally Antide Sitter (AdS) spaces for D ≥ 5+1. We show that unlike the flat space KK monopole, there are no five dimensional static KK monopoles in AdS space. Thus, one needs at least two extra dimensions, one of which is compact, to ..."
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We construct analogs of the flat space KaluzaKlein monopoles in locally Antide Sitter (AdS) spaces for D ≥ 5+1. We show that unlike the flat space KK monopole, there are no five dimensional static KK monopoles in AdS space. Thus, one needs at least two extra dimensions, one of which is compact
Results 11  20
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395