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We discuss the general form of quadratic (1,1) supergravity in two dimensions, and show that this theory is equivalent to two scalar supermultiplets coupled to non-trivial supergravity. It is demonstrated that the theory possesses stable…

High Energy Physics - Theory · Physics 2009-10-28 Ahmed Hindawi , Burt A. Ovrut , Daniel Waldram

Thin gravitating defects with conical singularities in higher codimensions and with generalized Israel matching conditions are known to be inconsistent for generic energy-momentum. A way to remove this inconsistency is proposed and is…

High Energy Physics - Theory · Physics 2008-11-26 Georgios Kofinas , Theodore Tomaras

Although the super-energy Bel-Robinson tensor gives a desirable gravitational energy-momentum in a small sphere region, the angular-momentum is vanishing. Intuitively, it should be non-zero. Our present work shows that indeed the angular…

General Relativity and Quantum Cosmology · Physics 2024-01-09 Lau Loi So

We discuss the coupling of vector-tensor multiplets to N=2 supergravity.

High Energy Physics - Theory · Physics 2009-10-30 P. Claus , B. de Wit , M. Faux , B. Kleijn , R. Siebelink , P. Termonia

We compare the dynamics of maximal three-dimensional gauged supergravity in appropriate truncations with the equations of motion that follow from a one-dimensional E10/K(E10) coset model at the first few levels. The constant embedding…

High Energy Physics - Theory · Physics 2009-01-22 Eric A. Bergshoeff , Olaf Hohm , Axel Kleinschmidt , Hermann Nicolai , Teake A. Nutma , Jakob Palmkvist

We clarify some issues related to the evaluation of the mean value of the energy-momentum tensor for quantum scalar fields coupled to the dilaton field in two-dimensional gravity. Because of this coupling, the energy-momentum tensor for the…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Fernando C. Lombardo , Francisco D. Mazzitelli , Jorge G. Russo

We consider a general class of vector-tensor theories of gravity and show that solutions with accelerated expansion and a future type III singularity are a common feature in these models. We also show that there are only six vector-tensor…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Jose Beltran Jimenez , Antonio L. Maroto

We find the rules of the conformal transformation for the energetic quantities such as the Einstein energy-momentum complex, the Bergmann-Thomson angular momentum complex, the superenergy tensor, and the angular supermomentum tensor of…

High Energy Physics - Theory · Physics 2011-11-10 Mariusz P. Dabrowski , Janusz Garecki

In generally covariant metric gravity theories with tensor matter fields, the initial value constraint equations, unlike in general relativity, are in general not just the 0\mu-components of the metric field equation. This happens because…

General Relativity and Quantum Cosmology · Physics 2015-05-30 Ted Jacobson

We construct the supercurrent multiplet that contains the energy-momentum tensor of the (2,0) tensor multiplet. By coupling this multiplet of currents to the fields of conformal supergravity, we first construct the linearized superconformal…

High Energy Physics - Theory · Physics 2009-10-31 Eric Bergshoeff , Ergin Sezgin , Antoine Van Proeyen

We present the gauged N=4 (half-maximal) supergravities in four and five spacetime dimensions coupled to an arbitrary number of vector multiplets. The gaugings are parameterized by a set of appropriately constrained constant tensors, which…

High Energy Physics - Theory · Physics 2008-12-13 Jonas Schon , Martin Weidner

We study the general gaugings of N=2 Maxwell-Einstein supergravity theories (MESGT) in five dimensions, extending and generalizing previous work. The global symmetries of these theories are of the form SU(2)_R X G, where SU(2)_R is the…

High Energy Physics - Theory · Physics 2011-02-09 Murat Gunaydin , Marco Zagermann

We construct the supersymmetric completion of E$_{6(6)}$-covariant exceptional field theory. The theory is based on a $(5+27)$-dimensional generalized space-time subject to a covariant section constraint. The fermions are tensors under the…

High Energy Physics - Theory · Physics 2015-06-23 Edvard Musaev , Henning Samtleben

Ultralight scalar dark matter may couple to the Standard Model through dimension-five operators that contain the field-strength tensors of the gauge interactions. Recent progress in nuclear clocks is projected to increase the sensitivity to…

High Energy Physics - Phenomenology · Physics 2026-05-01 Gabriel Assant , Astrid Eichhorn , Benjamin Knorr

We continue the study of supersymmetric domain wall solutions in six-dimensional maximal gauged supergravity. We first give a classification of viable gauge groups with the embedding tensor in $\mathbf{5}^{+7}$, $\bar{\mathbf{5}}^{+3}$,…

High Energy Physics - Theory · Physics 2021-11-16 Parinya Karndumri , Patharadanai Nuchino

The superspace formulation of N=1 conformal supergravity in four dimensions is demonstrated to be equivalent to the conventional component field approach based on the superconformal tensor calculus. The detailed correspondence between two…

High Energy Physics - Theory · Physics 2019-12-10 Taichiro Kugo , Ryo Yokokura , Koichi Yoshioka

Using superspace techniques we construct the general theory describing D=4, N=2 supergravity coupled to an arbitrary number of vector and scalar--tensor multiplets. The scalar manifold of the theory is the direct product of a special…

High Energy Physics - Theory · Physics 2008-11-26 Riccardo D'Auria , Gianguido Dall'Agata , Luca Sommovigo , Silvia Vaula'

We develop and apply a fully covariant 1+3 electromagnetic analogy for gravity. The free gravitational field is covariantly characterized by the Weyl gravito-electric and gravito-magnetic spatial tensor fields, whose dynamical equations are…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Roy Maartens , Bruce A. Bassett

The problem of finding a covariant expression for the distribution and conservation of gravitational energy-momentum dates to the 1910s. A suitably covariant infinite-component localization is displayed, reflecting Bergmann's realization…

General Relativity and Quantum Cosmology · Physics 2014-10-10 J. Brian Pitts

We reexamine the question of quantum consistency of supergravities in eight dimensions. Theories with 16 supercharges suffer from the anomalies under the action of its discrete modular groups. In minimally supersymmetric theory coupled to…

High Energy Physics - Theory · Physics 2024-06-21 Bing-Xin Lao , Ruben Minasian