172 results found
Stelle KS, Domain Walls and Spaces of Special Holonomy
We review the relations between a family of domain-wall solutions to M-theoryand gravitational instantons with special holonomy. When oxidized into themaximal-dimension parent supergravity, the transverse spaces of these domainwalls become cohomogeneity-one spaces with generalized Heisenberg symmetriesand a homothetic conformal symmetry. These metrics may also be obtained asscaling limits of generalized Eguchi-Hanson metrics, or, with appropriatediscrete identifications, from generalized Atiyah-Hitchin metrics, thusproviding field-theoretic realizations of string-theory orientifolds.
Lu H, Perkins A, Pope CN, et al., 2017, Lichnerowicz modes and black hole families in Ricci quadratic gravity, PHYSICAL REVIEW D, Vol: 96, ISSN: 2470-0010
Stelle KS, 2017, Abdus Salam and quadratic curvature gravity: Classical solutions, INTERNATIONAL JOURNAL OF MODERN PHYSICS A, Vol: 32, ISSN: 0217-751X
Stelle KS, 2016, Black Holes in Supergravity, 1st Karl Schwarzschild Meeting (KSM) on Gravitational Physics, Publisher: SPRINGER-VERLAG BERLIN, Pages: 207-216, ISSN: 0930-8989
Extensions of Einstein gravity with higher-order derivative terms arise in string theory and othereffective theories, as well as being of interest in their own right. In this Letter we study static black-holesolutions in the example of Einstein gravity with additional quadratic curvature terms. A Lichnerowicztypetheorem simplifies the analysis by establishing that they must have vanishing Ricci scalar curvature.By numerical methods we then demonstrate the existence of further black-hole solutions over and above theSchwarzschild solution. We discuss some of their thermodynamic properties, and show that they obey thefirst law of thermodynamics.
Lu H, Perkins A, Pope CN, et al., 2015, Spherically symmetric solutions in higher-derivative gravity, PHYSICAL REVIEW D, Vol: 92, ISSN: 1550-7998
Stelle KS, 2015, Symmetry orbits of supergravity black holes, THEORETICAL AND MATHEMATICAL PHYSICS, Vol: 182, Pages: 130-140, ISSN: 0040-5779
Crampton B, Pope CN, Stelle KS, 2014, Braneworld localisation in hyperbolic spacetime, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Bossard G, Howe PS, Stelle KS, 2013, Anomalies and divergences in N=4 supergravity, PHYSICS LETTERS B, Vol: 719, Pages: 424-429, ISSN: 0370-2693
Bossard G, Howe PS, Stelle KS, 2013, Invariants and divergences in half-maximal supergravity theories, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Stelle KS, 2013, String theory, unification and quantum gravity, Springer Proceedings in Mathematics and Statistics, Vol: 863, Pages: 3-30, ISSN: 2194-1009
© Springer-Verlag Berlin Heidelberg 2013. An overview is given of the way in which the unification program of particle physics has evolved into the proposal of superstring theory as a prime candidate for unifying quantum gravity with the other forces and particles of nature. A key concern with quantum gravity has been the problem of ultraviolet divergences, which is naturally solved in string theory by replacing particles with spatially extended states as the fundamental excitations. String theory turns out, however, to contain many more extended-object states than just strings. Combining all this into an integrated picture, called M-theory, requires recognition of the rôle played by a web of nonperturbative duality symmetries suggested by the nonlinear structures of the field-theoretic supergravity limits of string theory.
Pope CN, Pugh TG, Stelle KS, 2012, Chiral reductions in the Salam-Sezgin model, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Stelle KS, 2012, ULTRAVIOLET INFINITIES AND COUNTERTERMS IN SUPERSYMMETRIC THEORIES, INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, Vol: 9, ISSN: 0219-8878
Bossard G, Howe PS, Lindstrom U, et al., 2011, Integral invariants in maximally supersymmetric Yang-Mills theories, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1126-6708
Bossard G, Howe PS, Stelle KS, 2011, On duality symmetries of supergravity invariants, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Pugh TG, Sezgin E, Stelle KS, 2011, D=7/D=6 heterotic supergravity with gauged R-symmetry, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Stelle KS, 2011, Non-renormalization theorems in maximal supergravity, PROCEEDINGS OF THE STEKLOV INSTITUTE OF MATHEMATICS, Vol: 272, Pages: 246-255, ISSN: 0081-5438
Bossard G, Howe PS, Stelle KS, 2009, A note on the UV behaviour of maximally supersymmetric Yang-Mills theories, PHYSICS LETTERS B, Vol: 682, Pages: 137-142, ISSN: 0370-2693
Bossard G, Howe PS, Stelle KS, 2009, The ultra-violet question in maximally supersymmetric field theories, 405th WE Heraeus Seminar on Quantum Gravity, Publisher: SPRINGER/PLENUM PUBLISHERS, Pages: 919-981, ISSN: 0001-7701
Bossard G, Nicolai H, Stelle KS, 2009, Gravitational multi-NUT solitons, Komar masses and charges, GENERAL RELATIVITY AND GRAVITATION, Vol: 41, Pages: 1367-1379, ISSN: 0001-7701
Bossard G, Nicolai H, Stelle KS, 2009, Universal BPS structure of stationary supergravity solutions, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Haupt AS, Lukas A, Stelle KS, 2009, M-theory on Calabi-Yau Five-Folds, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
Stelle KS, 2009, Is N=8 supergravity a finite field theory?, 4th EU RTN Workshop on Constituents, Fundamental Forces and Symmetries of the Universe, Publisher: WILEY-V C H VERLAG GMBH, Pages: 446-450, ISSN: 0015-8208
Haupt AS, Stelle KS, 2008, M-theory on calabi-yau fivefolds, Pages: 2884-2886
It is important to test M-theory in regions of the moduli space that cannot be reached by string theory and thus to probe M-theory's intrinsic structure. One such test is the compactification of M-theory on manifolds with SU(5) holonomy, which require ten Euclidean-signature dimensions and hence probe beyond anything that can be discussed in perturbative string theory. We present some preliminary results of ongoing work that is focused on studying the resulting one-dimensional effective action. © 2008 World Scientific Publishing Co. Pte. Ltd.
Lehners J-L, Smyth P, Stelle KS, 2008, Kaluza-Klein induced supersymmetry breaking for braneworlds in type IIB supergravity, NUCLEAR PHYSICS B, Vol: 790, Pages: 89-110, ISSN: 0550-3213
Stelle KS, 2008, IN MEMORIAM: ABDUS SALAM (1926-1996), INTERNATIONAL JOURNAL OF MODERN PHYSICS A, Vol: 23, Pages: 3780-3786, ISSN: 0217-751X
Stelle KS, 2008, Is N = 8 supergravity an ultraviolet finite quantum field theory?, Pages: 137-141
Advances in the computation of quantum amplitudes in supergravity theories raise the question whether maximal supergravity in D = 4 spacetime dimensions might actually be free of ultraviolet divergences. On the other hand, supersymmetric non-renormalization theorems give no indication of cancellations for anything beyond half-BPS counterterm operators. The jury is still out, and bets are being taken on the outcome.
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