Near-horizon analysis of D=5 BPS black holes and rings (2009)
De Wit, Bernard, Katmadas, Stefanos
A comprehensive analysis is presented based exclusively on near-horizon data to determine the attractor equations and the entropy of BPS black holes and rings in five space-time dimensions, for a...
Supergravity and M-Theory (2009)
De Wit, Bernard, Van Zalk, Maaike
Supergravity provides the effective field theories for string compactifications. The deformation of the maximal supergravities by non-abelian gauge interactions is only possible for a restricted...
The end of the p-form hierarchy (2008)
De Wit, Bernard, Samtleben, Henning
The introduction of a non-abelian gauge group embedded into the rigid symmetry group G of a field theory with abelian vector fields and no corresponding charges, requires in general the presence of a...
Gauged Supergravities, Tensor Hierarchies, and M-Theory (2008)
De Wit, Bernard, Nicolai, Hermann, Samtleben, Henning
Deformations of maximal supergravity theories induced by gauging non-abelian subgroups of the duality group reveal the presence of charged M-theory degrees of freedom that are not necessarily...
Gauged Supergravities, Tensor Hierarchies, and M-Theory (2008)
De Wit, Bernard, Nicolai, Hermann, Samtleben, Henning
Deformations of maximal supergravity theories induced by gauging non-abelian subgroups of the duality group reveal the presence of charged M-theory degrees of freedom that are not necessarily...
Gauged supergravities, tensor hierarchies, and M-theory (2008)
De Wit, Bernard, Nicolai, Hermann, Samtleben, Henning
Deformations of maximal supergravity theories induced by gauging non-abelian subgroups of the duality group reveal the presence of charged M-theory degrees of freedom that are not necessarily...
Gauged supergravities, tensor hierarchies, and M-theory (2008)
De Wit, Bernard, Nicolai, Hermann, Samtleben, Henning
Deformations of maximal supergravity theories induced by gauging non-abelian subgroups of the duality group reveal the presence of charged M-theory degrees of freedom that are not necessarily...
The end of the p-form hierarchy (2008)
De Wit, Bernard, Samtleben, Henning
The introduction of a non-abelian gauge group embedded into the rigid symmetry group G of a field theory with abelian vector fields and no corresponding charges, requires in general the presence of a...
The end of the p-form hierarchy (2008)
De Wit, Bernard, Samtleben, Henning
The introduction of a non-abelian gauge group embedded into the rigid symmetry group G of a field theory with abelian vector fields and no corresponding charges, requires in general the presence of a...
Lagrangians with electric and magnetic charges of N=2 supersymmetric gauge theories (2007)
De Vroome, Mathijs, De Wit, Bernard
General Lagrangians are constructed for N=2 supersymmetric gauge theories in four space-time dimensions involving gauge groups with (non-abelian) electric and magnetic charges. The charges induce a...
The maximal D=4 supergravities (2007)
De Wit, Bernard, Samtleben, Henning, Trigiante, Mario
All maximal supergravities in four space-time dimensions are presented. The ungauged Lagrangians can be encoded in an E_7(7)\Sp(56,R)/GL(28) matrix associated with the freedom of performing...
The entropy of BPS black holes in four space-time dimensions is discussed from both macroscopic and microscopic points of view.
Tensor supermultiplets and toric quaternion-Kahler geometry (2007)
De Wit, Bernard, Saueressig, Frank
We review the relation between 4n-dimensional quaternion-Kahler metrics with n+1 abelian isometries and superconformal theories of n+1 tensor supermultiplets. As an application we construct the class...
The maximal D=4 supergravities (2007)
De Wit, Bernard, Samtleben, Henning, Trigiante, Mario
All maximal supergravities in four space-time dimensions are presented. The ungauged Lagrangians can be encoded in an E_7(7)\Sp(56,R)/GL(28) matrix associated with the freedom of performing...
The maximal D=4 supergravities (2007)
De Wit, Bernard, Samtleben, Henning, Trigiante, Mario
All maximal supergravities in four space-time dimensions are presented. The ungauged Lagrangians can be encoded in an E_7(7)\Sp(56,R)/GL(28) matrix associated with the freedom of performing...
Off-shell N=2 tensor supermultiplets (2006)
De Wit, Bernard, Saueressig, Frank
A multiplet calculus is presented for an arbitrary number n of N=2 tensor supermultiplets. For rigid supersymmetry the known couplings are reproduced. In the superconformal case the target spaces...
Black hole partition functions and duality (2006)
Cardoso, G. L., De Wit, Bernard, Käppeli, Jürg, Mohaupt, Thomas
The macroscopic entropy and the attractor equations for BPS black holes in four-dimensional N=2 supergravity theories follow from a variational principle for a certain `entropy function'. We present...
Supersymmetric black holes (2005)
Recent insights from string theory and supergravity on the macroscopic and the microscopic description of black hole entropy are discussed.
Asymptotic degeneracy of dyonic N=4 string states and black hole entropy (2004)
Cardoso, G. L., De Wit, Bernard, Käppeli, Jürg, Mohaupt, Thomas
It is shown that the asymptotic growth of the microscopic degeneracy of BPS dyons in four-dimensional N=4 string theory captures the known corrections to the macroscopic entropy of four-dimensional...
Hidden Symmetries, Central Charges and All That (2001)
De Wit, Bernard, Nicolai, Hermann
In this review we discuss hidden symmetries of toroidal compactifications of eleven-dimensional supergravity. We recall alternative versions of this theory which exhibit traces of the hidden...
Macroscopic entropy formulae and non-holomorphic corrections for supersymmetric black holes (2000)
De Wit, Bernard, Cardoso, G. L., Mohaupt, Thomas
In four-dimensional N=2 compactifications of string theory or M-theory, modifications of the Bekenstein-Hawking area law for black hole entropy in the presence of higher-derivative interactions are...
Superconformal hypermultiplets (2000)
De Wit, Bernard, Kleijn, B., Vandoren, S.
We present theories of N=2 hypermultiplets in four spacetime dimensions that are invariant under rigid or local superconformal symmetries. The target spaces of theories with rigid superconformal...
Area law corrections from state counting and supergravity (1999)
Cardoso, Gabriel Lopes, De Wit, Bernard, Mohaupt, Thomas
Modifications of the Bekenstein-Hawking area law for black holes are crucial in order to find agreement between the microscopic entropy based on state counting and the macroscopic entropy based on an...
Superconformal Hypermultiplets (1999)
De Wit, Bernard, Kleijn, Bas, Vandoren, Stefan
We present theories of N=2 hypermultiplets in four spacetime dimensions that are invariant under rigid or local superconformal symmetries. The target spaces of theories with rigid superconformal...
Macroscopic entropy formulae and non-holomorphic corrections for supersymmetric black holes (1999)
Cardoso, Gabriel Lopes, De Wit, Bernard, Mohaupt, Thomas
In four-dimensional N=2 compactifications of string theory or M-theory, modifications of the Bekenstein-Hawking area law for black hole entropy in the presence of higher-derivative interactions are...
Space-time supersymmetry, IIA/B duality and M-theory (1999)
Abou-Zeid, Mohab, De Wit, Bernard, Lüst, Dieter, Nicolai, Hermann
The connection between IIA superstring theory compactified on a circle of radius R and IIB theory compactified on a circle of radius 1/R is reexamined from the perspective of N=2, D=9 space-time...
Higher-Order Black-Hole Solutions in N=2 Supergravity and Calabi-Yau String Backgrounds (1998)
Behrndt, Klaus, Cardoso, Gabriel Lopes, De Wit, Bernard, Lüst, Dieter, Mohaupt, Thomas, Sabra, Wafic A.
Based on special geometry, we consider corrections to N=2 extremal black-hole solutions and their entropies originating from higher-order derivative terms in N=2 supergravity. These corrections are...
After a brief and practical introduction to field theory and the use of Feynman diagram, we discuss the main concept in gauge theories and their application in elementary particle physics. We present...
Classical and quantum N=2 supersymmetric black holes (1996)
Behrndt, K, Lópes-Cardoso, G, De Wit, Bernard, Kallosh, Renata E, Lüst, Dieter, Mohaupt, T
We use heterotic/type-II prepotentials to study quantum/classical black holes with half the $N=2, D=4$ supersymmetries unbroken. We show that, in the case of heterotic string compactifications, the...
De Wit, Bernard, Lópes-Cardoso, G, Lüst, Dieter, Mohaupt, T, Rey, S J
The restrictions of target--space duality are imposed at the perturbative level on the holomorphic Wilsonian couplings that encode certain higher-order gravitational interactions in $N=2, D=4$...
N=2 Electric-magnetic duality in a chiral background (1996)
We establish the consistency of duality transformations for generic systems of $N=2$ vector supermultiplets in the presence of a chiral background field. This is relevant, for instance, when dealing...
Introduction to gauge theories and the Standard Model (1995)
The conceptual basis of gauge theories is introduced to enable the construction of generic models.Spontaneous symmetry breaking is dicussed and its relevance for the renormalization of theories with...
Physical states in d = 3, N = 2 supergravity (1993)
De Wit, Bernard, Matschull, Hans-Jürgen, Nicolai, Hermann
To clarify some issues raised by D'Eath's recent proposal for the physical states of N = 1 supergravity in four dimensions, we study pure (topological) N = 2 supergravity in three dimensions, which...
Locally supersymmetric D = 3 non-linear sigma models (1993)
De Wit, Bernard, Tollsten, A. K., Nicolai, Hermann
We study non-linear sigma models with N local supersymmetries in three space-time dimensions. For N = 1 and 2 the target space of these models is riemannian or Kähler, respectively. All N > 2...
Two-loop finiteness of D = 2 supergravity (1992)
De Wit, Bernard, Grisaru, Marc T, Rabinovici, Eliezer, Nicolai, Hermann C
Two-loop finiteness of D=2 supergravity (1992)
De Wit, Bernard, Grisaru, M. T., Rabinovici, E., Nogai, Hermann
We establish two-loop (on-shell) finiteness of certain supergravity theories in two dimensions. Possible implications of this result are discussed.
Cremmer, E, Kounnas, Costas, Van Proeyen, A, Derendinger, Jean-Pierre, Ferrara, Sergio, De Wit, Bernard, ...
The supermembrane is unstable (1989)
De Wit, Bernard, Lüscher, M., Nicolai, Hermann
We give a rigorous proof that the quantum mechanical hamiltonians of a class of supersymmetric matrix models have a continuous spectrum starting at zero. We are thus led to conclude that...
On the quantum mechanics of supermembranes (1988)
De Wit, Bernard, Hoppe, Jens, Nicolai, Hermann
We study the quantum-mechanical properties of a supermembrane and examine the nature of its ground state. A supersymmetric gauge theory of area-preserving transformations provides a convenient...
The consistency of the S7 truncation in d=11 supergravity (1987)
De Wit, Bernard, Nicolai, Hermann
We give a complete proof that d=11 supergravity compactified on S7 admits a consistent truncation to its zero-mass sector. The resulting theory is shown to coincide with gauged N=8 supergravity to...
d = 11 supergravity with local SU(8) invariance (1986)
De Wit, Bernard, Nicolai, Hermann
The transformation rules and field equations of d = 11 supergravity are given in a form which is manifestly covariant under local SU(8) transformations. In this formulation the SO(1, 10) local...
Hidden symmetry in d = 11 supergravity (1985)
De Wit, Bernard, Nicolai, Hermann
Eleven-dimensional supergravity is reformulated in a way suggested by compactifications to four dimensions. The new version has local SU(8) invariance. The bosonic quantities that pertain to the...
The embedding of gauged N = 8 supergravity into d = 11 supergravity (1985)
De Wit, Bernard, Nicolai, Hermann
We investigate several aspects of the embedding of gauged N = 8 supergravity into d = 11 supergravity and give the full nonlinear metric ansatz for this embedding. This allows us to rederive the...
On the relation between d = 4 and d = 11 supergravity (1984)
De Wit, Bernard, Nicolai, Hermann
We investigate the supersymmetry transformation laws in an arbitrary compactification of d = 11 supergravity to four dimensions. The d = 4 fields of gauged N = 8 supergravity are identified in a...
The parallelizing S7 torsion in gauged N=8 supergravity (1984)
De Wit, Bernard, Nicolai, Hermann
Using the parallelizing S7 torsion as an ansatz we investigate two solutions of gauged N=8 supergravity with SO(7) invariance. Supersymmetry is uniformly broken. We calculate the masses for these...
A new SO(7) invariant solution of d = 11 supergravity (1984)
De Wit, Bernard, Nicolai, Hermann
We find a new SO(7) invariant solution of d = 11 supergravity by exploiting the relationship of this theory with gauged N = 8 supergravity in d = 4 dimensions.
Gauged N = 8 supergravity and its breaking from spontaneous compactification (1983)
Biran, B., Englert, Francois, De Wit, Bernard, Nicolai, Hermann
Gauged N = 8 supergravity emerges from spontaneous compactification of eleven-dimensional supergravity on the riemannian S7. This is the only non-trivial compactification scheme preserving full...
Nicolai, Hermann, De Wit, Bernard
The complete structure of N = 8 supergravity is presented with an optional local SO(8) invariance. The SO(8) gauge interactions break E7 invariance, but leave the local SU(8) unaffected. Exploiting...
N=8 supergravity with local SO(8) × SU(8) invariance (1982)
De Wit, Bernard, Nicolai, Hermann
We present an extension of N=8 supergravity in which the natural symmetry group SO(8) is gauged. Local SO(8) invariance is shown to be consistent with the dynamically realized SU(8) symmetry. We...
Extended supergravity with local SO(5) invariance (1981)
De Wit, Bernard, Nicolai, Hermann
We present a version of N = 5 supergravity with local SO(5) invariance and a lowest order calculation for N = 8 supergravity with local SO(8). The implications of these results and related aspects...
Gauged supergravities in three dimensions: a panoramic overview
Nicolai, Hermann, De Wit, Bernard, Samtleben, Henning
Maximal and non-maximal supergravities in three spacetime dimensions allow for a large variety of semisimple and non-semisimple gauge groups, as well as complex gauge groups that have no analog in...