Publications (155)
Black hole entropy and quantum information
M. J. Duff, S. Ferrara
We review some recently established connections between the mathematics of black hole entropy in string theory and that of multipartite entanglement in quantum information theory.…
Observations on the Holographic Duals of 4-D Extremal Black Holes
S. Ferrara, M. Porrati
We argue that extremal black holes of N=4 Poincare supergravity coupled to conformal matter have a quantum-exact dual 5-d description in the maximally supersymmetric extension of t…
No-scale D=5 supergravity from Scherk-Schwarz reduction of D=6 theories
L. Andrianopoli, S. Ferrara, M. A. Lledo
We perform a generalized dimensional reduction of six dimensional supergravity theories to five dimensions. We consider the minimal and the maximal theories. In eac…
E_{7(7)} Duality, BPS Black-Hole Evolution and Fixed Scalars
L. Andrianopoli, R. D'Auria, S. Ferrara +2
We study the general equations determining BPS Black Holes by using a Solvable Lie Algebra representation for the homogenous scalar manifold U/H of extended supergravity. In partic…
Bardeen-Anomaly and Wess-Zumino Term in the Supersymmetric Standard Model
S. Ferrara, A. Masiero, M. Porrati +1
We construct the Bardeen anomaly and its related Wess-Zumino term in the supersymmetric standard model. In particular we show that it can be written in terms of a composite linear…
AdS Superalgebras with Brane Charges
S. Ferrara, M. Porrati
We consider the inclusion of brane charges in AdS_5 superalgebras that contain the maximal central extension of the super-Poincaré algebra on the boundary of AdS_5. For theories w…
Gauging the Heisenberg algebra of special quaternionic manifolds
R. D'Auria, S. Ferrara, M. Trigiante +1
We show that in N=2 supergravity, with a special quaternionic manifold of (quaternionic) dimension h_1+1 and in the presence of h_2 vector multiplets, a h_2+1 dimensional abelian a…
On Electromagnetic Duality in Locally Supersymmetric N=2 Yang--Mills Theory
A. Ceresole, R. D'Auria, S. Ferrara +1
We consider duality transformations in N=2 Yang--Mills theory coupled to N=2 supergravity, in a manifestly symplectic and coordinate covariant setting. We give the essential of the…
Reflectivity of VUV-sensitive Silicon Photomultipliers in Liquid Xenon
M. Wagenpfeil, T. Ziegler, J. Schneider +140
Silicon photomultipliers are regarded as a very promising technology for next-generation, cutting-edge detectors for low-background experiments in particle physics. This work prese…
R-Symmetry and the Topological Twist of N=2 Effective Supergravities of Heterotic Strings
M. Billo', R. D'Auria, S. Ferrara +3
We discuss R-symmetries in locally supersymmetric N=2 gauge theories coupled to hypermultiplets which can be thought of as effective theories of heterotic superstring models. In th…
Real Special Geometry
M. Bertolini, A. Ceresole, R. D'Auria +1
We give a coordinate-free description of real manifolds occurring in certain four dimensional supergravity theories with antisymmetric tensor fields. The relevance of the linear mu…
Curvatures and potential of M-theory in D=4 with fluxes and twist
R. D'Auria, S. Ferrara, M. Trigiante
We give the curvatures of the free differential algebra (FDA) of M--theory compactified to D=4 on a twisted seven--torus with the 4--form flux switched on. Two formulations are giv…
Two-Field Born-Infeld with Diverse Dualities
S. Ferrara, A. Sagnotti, A. Yeranyan
We elaborate on how to build, in a systematic fashion, two-field Abelian extensions of the Born-Infeld Lagrangian. These models realize the non-trivial duality groups that are allo…
The Symplectic Structure of N=2 Supergravity and its Central Extension
A. Ceresole, R. D'Auria, S. Ferrara
We report on the formulation of supergravity coupled to abelian vector multiplets in presence of electric and magnetic charges. General formulae for the (moduli d…
Shortening of primary operators in N-extended SCFT_4 and harmonic-superspace analyticity
L. Andrianopoli, S. Ferrara, E. Sokatchev +1
We present the analysis of all possible shortenings which occur for composite gauge invariant conformal primary superfields in SU(2,2/N) invariant gauge theories. These primaries h…
E_6 and the bipartite entanglement of three qutrits
M. J. Duff, S. Ferrara
Recent investigations have established an analogy between the entropy of four-dimensional supersymmetric black holes in string theory and entanglement in quantum information theory…
Intersecting Attractors
S. Ferrara, A. Marrani, J. F. Morales +1
We apply the entropy formalism to the study of the near-horizon geometry of extremal black p-brane intersections in D>5 dimensional supergravities. The scalar flow towards the hori…
E_{7(7)} symmetry and dual gauge algebra of M-theory on a twisted seven-torus
R. D'Auria, S. Ferrara, M. Trigiante
We consider M-theory compactified on a twisted 7-torus with fluxes when all the seven antisymmetric tensor fields in four dimensions have been dualized into scalars and thus the E_…
On the Geometry of Moduli Space of Vacua in N=2 Supersymmetric Yang-Mills Theory
A. Ceresole, R. D'Auria, S. Ferrara
We consider generic properties of the moduli space of vacua in supersymmetric Yang--Mills theory recently studied by Seiberg and Witten. We find, on general grounds, Picard--…
4-D gauged supergravity analysis of Type IIB vacua on
L. Andrianopoli, R. D'Auria, S. Ferrara +1
We analyze vacua of type IIB string theory on in presence of three-form fluxes from a four dimensional supergravity viewpoint. The quaternionic geometr…
N=2 Supergravity and N=2 Super Yang-Mills Theory on General Scalar Manifolds: Symplectic Covariance, Gaugings and the Momentum Map
L. Andrianopoli, M. Bertolini, A. Ceresole +4
The general form of N=2 supergravity coupled to an arbitrary number of vector multiplets and hypermultiplets, with a generic gauging of the scalar manifold isometries is given. Thi…
Duality, Central Charges and Entropy of Extremal BPS Black Holes
L. Andrianopoli, R. D'Auria, S. Ferrara
We report on some general results on the physics of extremal BPS black holes in four and five dimensions. The duality-invariant entropy-formula for all extended supergravitie…
Gauge fields as composite boundary excitations
S. Ferrara, C. Fronsdal
We investigate representations of the conformal group that describe "massless" particles in the interior and at the boundary of anti-de Sitter space. It turns out that massless gau…
Central Extension of Extended Supergravities in Diverse Dimensions
L. Andrianopoli, R. D'Auria, S. Ferrara
We generalize central-charge relations and differential identities of N=2 Special Geometry to N extended supergravity in any dimension 4 \leq D <10, and p-extended objects. We stud…
K3 x T^2/Z_2 orientifolds with fluxes, open string moduli and critical points
C. Angelantonj, R. D'Auria, S. Ferrara +1
We extend the four-dimensional gauged supergravity analysis of type IIB vacua on to the case where also D3 and D7 moduli, belonging to N=2 vector multiplets, are…
d=4 Attractors, Effective Horizon Radius and Fake Supergravity
S. Ferrara, A. Gnecchi, A. Marrani
We consider extremal black hole attractors (both BPS and non-BPS) for N=3 and N=5 supergravity in d=4 space-time dimensions. Attractors for matter-coupled N=3 theory are similar to…
Consistent reduction of N=2 -> N=1 four dimensional supergravity coupled to matter
L. Andrianopoli, R. D'Auria, S. Ferrara
We analyze the constraints which follow both on the geometry and on the gauge sector for a consistent supergravity reduction of a general matter-coupled N=2 supergravity theory in…
A Search for Non-Perturbative Dualities of Local Yang--Mills Theories from Calabi--Yau Threefolds
A. Ceresole, M. Billo', R. D'Auria +5
The generalisation of the rigid special geometry of the vector multiplet quantum moduli space to the case of supergravity is discussed through the notion of a dynamical Calabi--Yau…
On short and long SU(2,2/4) multiplets in the AdS/CFT correspondence
L. Andrianopoli, S. Ferrara
We analyze short and long multiplets which appear in the OPE expansion of ``chiral'' primary operators in N=4 Super Yang--Mills theory. Among them, higher spin long and new short m…
N=8 non-BPS Attractors, Fixed Scalars and Magic Supergravities
S. Ferrara, A. Marrani
We analyze the Hessian matrix of the black hole potential of N=8, d=4 supergravity, and determine its rank at non-BPS critical points, relating the resulting spectrum to non-BPS so…
Horizon Geometry, Duality and Fixed scalars in Six Dimensions
L. Andrianopoli, R. D'Auria, S. Ferrara +1
We consider the problem of extremizing the tension for BPS strings in D=6 supergravities with different number of supersymmetries. General formulae for fixed scalars and a discussi…
Bulk Gauge Fields in AdS Supergravity and Supersingletons
S. Ferrara, A. Zaffaroni
We describe conformal operators living at the boundary of in a general setting. Primary conformal operators at the threshold of the unitarity bounds of UIR's of O(d,2)…
Black Hole Attractors in Extended Supergravity
S. Ferrara, A. Marrani
We review some aspects of the attractor mechanism for extremal black holes of (not necessarily supersymmetric) theories coupling Einstein gravity to scalars and Maxwell vector fiel…
Erice Lectures on Black Holes and Attractors
S. Ferrara, K. Hayakawa, A. Marrani
These lectures give an elementary introduction to the subject of four dimensional black holes (BHs) in supergravity and the Attractor Mechanism in the extremal case. Some thermodyn…
Matter Coupled F(4) Supergravity and the AdS_6/CFT_5 Correspondence
R. D'Auria, S. Ferrara, S. VaulÃ
F(4) supergravity, the gauge theory of the exceptional six-dimensional Anti-de Sitter superalgebra, is coupled to an arbitrary number of vector multiplets whose scalar components p…
Maurer-Cartan Equations and Black Hole Superpotentials in N =8 Supergravity
S. Ferrara, A. Marrani, E. Orazi
We retrieve the non-BPS extremal black hole superpotential of N=8, d=4 supergravity by using the Maurer-Cartan equations of the symmetric space E_7(7)/SU(8). This superpotential wa…
Short representations of SU(2,2/N) and harmonic superspace analyticity
S. Ferrara, E. Sokatchev
We consider the harmonic superspaces associated to SU(2,2/N) superconformal algebras. For arbitrary N, we show that massless representations, other than the chiral ones, correspond…
Freudenthal Dual Lagrangians
L. Borsten, M. J. Duff, S. Ferrara +1
The global U-dualities of extended supergravity have played a central role in differentiating the distinct classes of extremal black hole solutions. When the U-duality group satisf…
Central Extensions of Supersymmetry in Four and Three Dimensions
S. Ferrara, M. Porrati
We consider the maximal central extension of the supertranslation algebra in d=4 and 3, which includes tensor central charges associated to topological defects such as domain walls…
Quantum Lift of Non-BPS Flat Directions
S. Bellucci, S. Ferrara, A. Marrani +1
We study N=2, d=4 attractor equations for the quantum corrected two-moduli prepotential , with real, which is the only correction which preserves the axi…
Spinor Algebras
R. D'Auria, S. Ferrara, M. A. Lledó +1
We consider supersymmetry algebras in space-times with arbitrary signature and minimal number of spinor generators. The interrelation between super Poincaré and super conformal al…
Axion gauge symmetries and generalized Chern-Simons terms in N=1 supersymmetric theories
L. Andrianopoli, S. Ferrara, M. A. Lledo'
We compute the form of the Lagrangian of N=1 supersymmetric theories with gauged axion symmetries. It turns out that there appear generalized Chern-Simons terms that were not consi…
N=6 Supergravity on and the Superconformal Correspondence
S. Ferrara, M. Porrati, A. Zaffaroni
It is argued that N=6 supergravity on , with gauge group corresponds, at the classical level, to a subsector of the ``chiral'' primary operators of N=4 Ya…
Separation of Attractors in 1-modulus Quantum Corrected Special Geometry
S. Bellucci, S. Ferrara, A. Marrani +1
We study the attractor equations for a quantum corrected prepotential F=t^3+iλ, with λ\in R,which is the only correction which preserves the axion shift symmetry and modifies the…
Cosmogenic production of Ar and Ar in argon
R. Saldanha, H. O. Back, R. H. M. Tsang +6
We have experimentally determined the production rate of Ar and Ar from cosmic ray neutron interactions in argon at sea level. Understanding these production rates is…
Orientifolds, Brane Coordinates and Special Geometry
R. D'Auria, S. Ferrara, M. Trigiante
We report on the gauged supergravity analysis of Type IIB vacua on K3x T2/Z2 orientifold in the presence of D3-D7-branes and fluxes. We discuss supersymmetric critical points corre…
Design of a high voltage delivery system for noble liquid time projection chambers
R. Saldanha, L. Pagani, E. Angelico +129
Noble liquid time projection chambers (TPCs) are a leading technology in the detection of ionizing radiation, particularly in applications such as accelerator neutrino physics, dar…
Spontaneously broken supergravity: Old and new facts
R. D'Auria, S. Ferrara, M. Trigiante
We report on some recent investigations of the structure of the four dimensional gauged supergravity Lagrangian which emerges from flux and Scherk-Schwarz compactifications in high…
Spinors, superalgebras and the signature of space-time
S. Ferrara
Superconformal algebras embedding space-time in any dimension and signature are considered. Different real forms of the -symmetries arise both for usual space-time signature (on…
Reflectance of Silicon Photomultipliers at Vacuum Ultraviolet Wavelengths
P. Lv, G. F. Cao, L. J. Wen +148
Characterization of the vacuum ultraviolet (VUV) reflectance of silicon photomultipliers (SiPMs) is important for large-scale SiPM-based photodetector systems. We report the angula…
Generalized dimensional reduction of supergravity with eight supercharges
L. Andrianopoli, S. Ferrara, M. A. Lledo'
We describe some recent investigation about the structure of generic D=4,5 theories obtained by generalized dimensional reduction of D=5,6 theories with eight supercharges. We rela…
M Theory on the Stiefel manifold and 3d Conformal Field Theories
A. Ceresole, G. Dall'Agata, R. D'Auria +1
We compute the mass and multiplet spectrum of M theory compactified on the product of AdS(4) spacetime by the Stiefel manifold V(5,2)=SO(5)/SO(3), and we use this information to de…
Two-Centered Magical Charge Orbits
L. Andrianopoli, R. D'Auria, S. Ferrara +2
We determine the two-centered generic charge orbits of magical N = 2 and maximal N = 8 supergravity theories in four dimensions. These orbits are classified by seven U-duality inva…
On the Super Higgs Effect in Extended Supergravity
L. Andrianopoli, R. D'Auria, S. Ferrara +1
We consider the reduction of supersymmetry in N-extended four dimensional supergravity via the super Higgs mechanism in theories without cosmological constant. We provide an analys…
Dyonic Masses from Conformal Field Strengths in D even Dimensions
R. D'Auria, S. Ferrara
We show that D/2--form gauge fields in D even dimensions can get a mass with both electric and magnetic contributions when coupled to conformal field--strengths whose gauge potenti…
AdS_6 Interpretation of 5d Superconformal Field Theories
S. Ferrara, A. Kehagias, H. Partouche +1
We explore the connection of anti-de-Sitter supergravity in six dimensions, based on the exceptional F(4) superalgebra, and its boundary superconformal singleton theory. The interp…
Some Aspects of Deformations of Supersymmetric Field Theories
S. Ferrara, M. A. Lledó
We investigate some aspects of Moyal-Weyl deformations of superspace and their compatibility with supersymmetry. For the simplest case, when only bosonic coordinates are deformed,…
Extremal Black Hole and Flux Vacua Attractors
S. Bellucci, S. Ferrara, R. Kallosh +1
These lectures provide a pedagogical, introductory review of the so-called Attractor Mechanism (AM) at work in two different 4-dimensional frameworks: extremal black holes in N=2 s…
Four curious supergravities
M. J. Duff, S. Ferrara
We consider four supergravities with 16+16, 32+32, 64+64, 128+128 degrees of freedom displaying some curious properties: (1) They exhibit minimal supersymmetry (N=1, 2, 2, 1) but m…
D = 3 Unification of Curious Supergravities
M. J. Duff, S. Ferrara, A. Marrani
We consider the dimensional reduction to D = 3 of four maximal-rank supergravities which preserve minimal supersymmetry in D = 11, 7, 5 and 4. Such "curious" theories were investig…
Flat Symplectic Bundles of N-Extended Supergravities, Central Charges and Black-Hole Entropy
L. Andrianopoli, R. D'Auria, S. Ferrara
In these lectures we give a geometrical formulation of N-extended supergravities which generalizes N=2 special geometry of N=2 theories. In all these theories duality symmetries ar…
Black hole entropy, flat directions and higher derivatives
S. Bellucci, S. Ferrara, A. Shcherbakov +1
Higher order derivative corrections to the Einstein--Maxwell action are considered and an explicit form is found for the corrections to the entropy of extremal black holes. We spec…
Tensor and Vector Multiplets in Six-Dimensional Supergravity
S. Ferrara, F. Riccioni, A. Sagnotti
We construct the complete coupling of supergravity in six dimensions to tensor multiplets, extending previous results to all orders in the fermi fields. We then add cou…
Conformal Maxwell theory as a singleton field theory on AdS_5, IIB three-branes and duality
S. Ferrara, C. Fronsdal
We examine the boundary conditions associated with extended supersymmetric Maxwell theory in 5-dimensional anti-De Sitter space. Excitations on the boundary are identical to those…
N=1 No-Scale Supergravity from IIB Orientifolds
S. Ferrara, M. Porrati
We describe the low-energy effective theory of N=1 spontaneously broken supegravity obtained by flux-induced breaking in the presence of n D3 branes. This theory can be obtained by…
Superspace Representations of SU(2,2/N) Superalgebras and Multiplet Shortening
S. Ferrara
We derive massless and massive representations of all SU(2,2/N) superalgebras by using superfields defined in "harmonic superspace". This method allows one to easily construct "sho…
A superfield constraint for N=2 --> N=0 breaking
E. Dudas, S. Ferrara, A. Sagnotti
We identify a cubic holomorphic constraint that subtends the total breaking of N=2 supersymmetry in a vector multiplet and exhibit its microscopic origin. The new constraint leaves…
11-Dimensional Supergravity Compactified on Calabi-Yau Threefolds
A. C. Cadavid, A. Ceresole, R. D'Auria +1
We consider generic features of eleven dimensional supergravity compactified down to five dimensions on an arbitrary Calabi-Yau threefold.
Superconformal Field Theories, Multiplet Shortening, and the AdS/SCFT Correspondence
S. Ferrara, A. Zaffaroni
We review the unitarity bounds and the multiplet shortening of UIR's of 4 dimensional superconformal algebras , () in view of their dual role in the AdS/SCFT co…
Born-Infeld Corrections to D3 brane Action in and N=4, d=4 Primary Superfields
S. Ferrara, M. A. Lledó, A. Zaffaroni
We consider certain supersymmetric Born-Infeld couplings to the D3 brane action and show that they give rise to massless and massive KK excitations of type IIB on …
BPS black holes, supersymmetry and orbits of exceptional groups
S. Ferrara
We report on duality invariant constraints, which allow a classification of BPS black holes preserving different fractions of supersymmetry. We then relate this analysis to the orb…
Explicit Orbit Classification of Reducible Jordan Algebras and Freudenthal Triple Systems
L. Borsten, M. J. Duff, S. Ferrara +2
We determine explicit orbit representatives of reducible Jordan algebras and of their corresponding Freudenthal triple systems. This work has direct application to the classificati…
stu Black Holes Unveiled
S. Bellucci, S. Ferrara, A. Marrani +1
The general solutions of the radial attractor flow equations for extremal black holes, both for non-BPS with non-vanishing central charge Z and for Z=0, are obtained for the so-cal…
N=2 Supergravity Counterterms, Off and On Shell
W. Chemissany, S. Ferrara, R. Kallosh +1
We study N=2 supergravity deformed by a genuine supersymmetric completion of the term, using the underlying off shell N=2 superconformal framework. The gauge-fixed supercon…
Massive Born--Infeld and Other Dual Pairs
S. Ferrara, A. Sagnotti
We consider massive dual pairs of p-forms and (D-p-1)-forms described by non-linear Lagrangians, where non-linear curvature terms in one theory translate into non-linear mass-like…
Doubly Self-Dual Actions in Various Dimensions
S. Ferrara, A. Sagnotti, A. Yeranyan
The self-duality of the N=1 supersymmetric Born--Infeld action implies a double self-duality of the tensor multiplet square-root action when the scalar and the antisymmetric tensor…
N=1,2 4D Superconformal Field Theories and Supergravity in
S. Ferrara, A. Zaffaroni
We consider D3 branes world-volume theories substaining superconformal field theories. Under the assumption that these theories are dual to supergravities in $AdS_5…
The Minimal Volkov - Akulov - Starobinsky Supergravity
I. Antoniadis, E. Dudas, S. Ferrara +1
We construct a supergravity model whose scalar degrees of freedom arise from a chiral superfield and are solely a scalaron and an axion that is very heavy during the inflationary p…
Duality Symmetries in N=2 Heterotic Superstring
I. Antoniadis, S. Ferrara, E. Gava +2
We review the derivation and the basic properties of the perturbative prepotential in N=2 compactifications of the heterotic superstring. We discuss the structure of the perturbati…
Scherk-Schwarz Reduction of D=5 Special and Quaternionic Geometry
L. Andrianopoli, S. Ferrara, M. A. Lledo'
We give the N=2 gauged supergravity interpretation of a generic D=4, N=2 theory as it comes from generalized Scherk-Schwarz reduction of D=5, N=2 (ungauged) supergravity. We focus…
N=2 Heterotic Superstring and its Dual Theory in Five Dimensions
I. Antoniadis, S. Ferrara, T. R. Taylor
We study quantum effects in five dimensions in heterotic superstring theory compactified on K_3 x S_1 and analyze the conjecture that its dual effective theory is eleven-dimensiona…
Non-BPS Attractors in 5d and 6d Extended Supergravity
L. Andrianopoli, S. Ferrara, A. Marrani +1
We connect the attractor equations of a certain class of N=2, d=5 supergravities with their (1,0), d=6 counterparts, by relating the moduli space of non-BPS d=5 black hole/black st…
Attractors and first order formalism in five dimensions revisited
S. Bellucci, S. Ferrara, A. Shcherbakov +1
The attractor mechanism in five dimensional Einstein-Maxwell Chern-Simons theory is studied. The expression of the five dimensional rotating black object potential depending on Tau…
R--R Scalars, U--Duality and Solvable Lie Algebras
L. Andrianopoli, R. D'Auria, S. Ferrara +2
We consider the group theoretical properties of R--R scalars of string theories in the low-energy supergravity limit and relate them to the solvable Lie subalgebra $\IG_s\subset U$…
Observations on Integral and Continuous U-duality Orbits in N=8 Supergravity
L. Borsten, D. Dahanayake, M. J. Duff +3
One would often like to know when two a priori distinct extremal black p-brane solutions are in fact U-duality related. In the classical supergravity limit the answer for a large c…
U-Invariants, Black-Hole Entropy and Fixed Scalars
L. Andrianopoli, R. D'Auria, S. Ferrara
The absolute (moduli-independent) U-invariants of all N>2 extended supergravities at D=4 are derived in terms of (moduli-dependent) central and matter charges. These invariants giv…
Spontaneous Breaking of N=2 to N=1 in Rigid and Local Supersymmetric Theories
S. Ferrara, L. Girardello, M. Porrati
We analyze the relation between rigid and local supersymmetric N=2 field theories, when half of the supersymmetries are spontaneously broken. In particular, we show that the recent…
On the supergravity formulation of mirror symmetry in generalized Calabi-Yau manifolds
R. D'Auria, S. Ferrara, M. Trigiante
We derive the complete supergravity description of the N=2 scalar potential which realizes a generic flux-compactification on a Calabi-Yau manifold (generalized geometry). The effe…
Critical points of the Black-Hole potential for homogeneous special geometries
R. D'Auria, S. Ferrara, M. Trigiante
We extend the analysis of N=2 extremal Black-Hole attractor equations to the case of special geometries based on homogeneous coset spaces. For non-BPS critical points (with non van…
Gauged extended supergravity without cosmological constant: no-scale structure and supersymmetry breaking
L. Andrianopoli, R. D'Auria, S. Ferrara +1
We consider the interplay of duality symmetries and gauged isometries of supergravity models giving N-extended, spontaneously broken supergravity with a no-scale structure. Some ex…
Generalized mirror symmetry and trace anomalies
M. J. Duff, S. Ferrara
We consider compactification of M-theory on X7 with betti numbers (b_0, b_1, b_2, b_3, b_3, b_2, b_1, b_0) and define a generalized mirror symmetry (b_0, b_1, b_2, b_3) goes to (b_…
General Matter Coupled N=2 Supergravity
L. Andrianopoli, M. Bertolini, A. Ceresole +3
The general form of N=2 supergravity coupled to an arbitrary number of vector multiplets and hypermultiplets, with a generic gauging of the scalar manifold isometries is given. Thi…
SAM Lectures on Extremal Black Holes in d=4 Extended Supergravity
S. Bellucci, S. Ferrara, M. Gunaydin +1
We report on recent results in the study of extremal black hole attractors in N=2, d=4 ungauged Maxwell-Einstein supergravities. For homogeneous symmetric scalar manifolds, the thr…
Supersymmetry and Inflation
S. Ferrara, A. Sagnotti
Theories with elementary scalar degrees of freedom seem nowadays required for simple descriptions of the Standard Model and of the Early Universe. It is then natural to embed theor…
Minimal Supergravity Models of Inflation Coupled to Matter
S. Ferrara, M. Porrati
The supersymmetric extension of "Starobinsky" models of inflation is particularly simple in the "new minimal" formalism of supergravity, where the inflaton has no scalar…
More on N=8 Attractors
A. Ceresole, S. Ferrara, A. Gnecchi +1
We examine few simple extremal black hole configurations of N=8, d=4 supergravity. We first elucidate the relation between the BPS Reissner-Nordstrom black hole and the non-BPS Kal…
E_7 and the tripartite entanglement of seven qubits
M. J. Duff, S. Ferrara
In quantum information theory, it is well known that the tripartite entanglement of three qubits is described by the group [SL(2,C)]^3 and that the entanglement measure is given by…
Integration of massive states as contractions of non linear -models
L. Andrianopoli, S. Ferrara, M. A. Lledo +1
We consider the contraction of some non linear sigma models which appear in effective supergravity theories. In particular we consider the contractions of maximally symmetric space…
Five Dimensional U-Duality, Black-Hole Entropy and Topological Invariants
L. Andrianopoli, R. D'Auria, S. Ferrara
We find the topological entropy formula for all extended supergravities in five dimensions and the fixed scalar condition for the black-hole ``potential energy'' which extrem…
Mirror Fermat Calabi-Yau Threefolds and Landau-Ginzburg Black Hole Attractors
S. Bellucci, S. Ferrara, A. Marrani +1
We study black hole attractor equations for one-(complex structure)modulus Calabi-Yau spaces which are the mirror dual of Fermat Calabi-Yau threefolds (CY_{3}s). When exploring non…