71 citations · 473 across the 26 of their papers we have counts for
27 papers
Thermal superpotential and thermodynamics of neutral hairy black holes in extended SUGRA
Andrès Anabalòn, Dumitru Astefanesei, David Choque +1
We present a family of exact neutral hairy black-hole solutions with spherical horizon topology in extended supergravity with Fayet--Iliopoulos terms. We consider a consistent dila…
Gravitational effects in a superconducting film struck by a laser pulse
Giovanni A. Ummarino, Antonio Gallerati
We study the local interaction of the gravitational field with a superfluid condensate. To this end, we exploit the Ginzburg-Landau formalism with generalized Maxwell fields. The a…
Supersymmetric smooth distributions of M2-branes as AdS solitons
A. Anabalón, D. Astefanesei, A. Gallerati +1
We show that the singularities of certain distributions of M2-branes can be removed by adding a Wilson loop around a compact direction along the brane. The holographic coordinate n…
A Positive Energy Theorem for AdS Solitons
Andrés Anabalón, Mattia Cesàro, Antonio Gallerati +2
The uncharged AdS soliton has been recently shown to be continuously connected to a magnetic, supersymmetric AdS soliton within gauged supergravity. By cons…
Dirac equation in curved spacetime: the role of local Fermi velocity
B. Bagchi, A. Gallerati, R. Ghosh
We study the motion of charge carriers in curved Dirac materials, in the presence of a local Fermi velocity. An explicit parameterization of the latter emerging quantity for a nano…
Supersymmetric solitons in gauged supergravity
Andrés Anabalón, Antonio Gallerati, Simon Ross +1
We consider soliton solutions in AdS with a flat slicing and Wilson loops around one cycle. We study the phase structure and find the ground state and identify supersymmetric…
Interaction between macroscopic quantum systems and gravity
Antonio Gallerati, Giovanni Modanese, Giovanni Ummarino
We review experiments and theoretical models about the possible mutual interplay between the gravitational field and materials in the superconducting state or other macroscopic qua…
Graphene, Dirac equation and analogue gravity
Antonio Gallerati
We provide an updated study of some electronic properties of graphene nanoscrolls, exploiting a related curved space Dirac equation for the charge carriers. To this end, we conside…
Superconductors and gravity
Antonio Gallerati, Giovanni Ummarino
We review and discuss some recent developments on the unconventional interaction between superconducting systems and the local gravitational field. While it is known that gravitati…
Superconductor in static gravitational, electric and magnetic fields with vortex lattice
Giovanni Ummarino, Antonio Gallerati
We estimate the conjectured interaction between the Earth gravitational field and a superconductor immersed in external, static electric and magnetic field. The latter is close to…
Instability of supersymmetric black holes via quantum phase transitions
Andrés Anabalón, Dumitru Astefanesei, Antonio Gallerati +1
In this paper we prove that the four-dimensional hyperbolic supersymmetric black holes can be unstable in the canonical ensemble. To this end, we work with an infinite class of $\,…
Supersymmetric theories and graphene
Antonio Gallerati
We discuss a 1+2 dimensional model with unconventional supersymmetry at the boundary of an AdS, \,-extended supergravity. The resulting features of the supersymm…
Possible alterations of local gravitational field inside a superconductor
G. A. Ummarino, A. Gallerati
We calculate the possible interaction between a superconductor and the static Earth's gravitational fields, making use of the gravito-Maxwell formalism combined with the time-depen…
Negative-curvature spacetime solutions for graphene
Antonio Gallerati
We provide a detailed analysis of the electronic properties of graphene-like materials with charge carriers living on a curved substrate, focusing in particular on constant negativ…
Interaction between superconductors and weak gravitational field
Antonio Gallerati
We consider the interaction between the Earth's gravitational field and a superconductor in the fluctuation regime. Exploiting the weak field expansion formalism and using time dep…
New non-extremal and BPS hairy black holes in gauged and supergravity
Andres Anabalon, Dumitru Astefanesei, Antonio Gallerati +1
In this article we study a family of four-dimensional, supergravity theories that interpolates between all the single dilaton truncations of the ga…
Exact holographic RG flows in extended SUGRA
Andrés Anabalón, Dumitru Astefanesei, David Choque +2
We present a family of exact planar hairy neutral black hole solutions in extended supergravity with Fayet-Iliopoulos (FI) terms. We consider a model where the magnetic part of FI…
Josephson AC effect induced by weak gravitational field
Giovanni Alberto Ummarino, Antonio Gallerati
In this paper we examine the possibility of a Josephson AC effect between two superconductors induced by the Earth's gravitational field, making use of the gravito-Maxwell formalis…
Exploiting weak field gravity-Maxwell symmetry in superconductive fluctuations regime
Giovanni Alberto Ummarino, Antonio Gallerati
We study the behaviour of a superconductor in a weak static gravitational field for temperatures slightly greater than its transition temperature (fluctuation regime). Making use o…
Constructing black hole solutions in supergravity theories
Antonio Gallerati
We perform a detailed analysis of black hole solutions in supergravity models. After a general introduction on black holes in general relativity and supersymmetric theories, we pro…
Introductory Lectures on Extended Supergravities and Gaugings
Antonio Gallerati, Mario Trigiante
In an ungauged supergravity theory, the presence of a \emph{scalar potential} is allowed only for the minimal case. In extended supergravities, a non-trivial scalar potentia…
Graphene properties from curved space Dirac equation
Antonio Gallerati
A mathematical formulation for particle states and electronic properties of a curved graphene sheet is provided, exploiting a massless Dirac spectrum description for charge carrier…
Hairy Black Holes and Duality in an Extended Supergravity Model
Andres Anabalon, Dumitru Astefanesei, Antonio Gallerati +1
We consider a , gauged supergravity with an electromagentic Fayet-Iliopoulos term. We restrict to the uncharged, single dilaton consistent truncation and point…
Superconductor in a weak static gravitational field
Giovanni Alberto Ummarino, Antonio Gallerati
We provide the detailed calculation of a general form for Maxwell and London equations that takes into account gravitational corrections in linear approximation. We determine the p…