105 citations · 628 across the 33 of their papers we have counts for
18 papers · 1 filter
Spontaneous symmetry breaking in models with second-class constraints
C. A. Escobar, Román Linares
In this work the spontaneous symmetry breaking in certain nonlinear theories with second-class constraints is explored. Using the Dirac's method we perform an analysis of the const…
Hamiltonian analysis of ModMax nonlinear electrodynamics in the first order formalism
C. A. Escobar, Román Linares, B. Tlatelpa-Mascote
In this work we study the so-called ModMax nonlinear electrodynamics, which is a novel model designed to preserve duality rotations and conformal transformations, such as the Maxwe…
Scalar Casimir effect for a conducting cylinder in a Lorentz violating background
A. M. Escobar-Ruiz, A. Martín-Ruiz, Escobar C. A. +1
Following a field-theoretical approach, we study the scalar Casimir effect upon a perfectly conducting cylindrical shell in the presence of spontaneous Lorentz symmetry breaking. T…
corrections of Reissner-Nordström black holes
Pablo A. Cano, Samuele Chimento, Roman Linares +2
We study the first-order in corrections to non-extremal 4-dimensional dyonic Reissner-Nordström (RN) black holes with equal electric and magnetic charges in the context of Het…
Thermodynamical properties of a noncommutative anti-de Sitter-Einstein-Born-Infeld spacetime from gauge theory of gravity
Román Linares, Marco Maceda, Oscar Sánchez-Santos
We construct a deformed adS-Einstein-Born-Infeld black hole from noncommutative gauge theory of gravity and determine the metric coefficients up to second order on the noncommutati…
Thermodynamics of a higher dimensional noncommutative anti-de Sitter-Einstein-Born-infeld black hole
Angélica González, Román Linares, Marco Maceda +1
We analyze noncommutative deformations of a higher dimensional anti-de Sitter-Einstein-Born-Infeld black hole. Two models based on noncommutative inspired distributions of mass and…
Non-commutative Einstein-Proca Space-time
Blanca Gónzales, Román Linares, Marco Maceda +1
In this work we present a deformed model of Einstein-Proca space-time based on the replacement of point-like sources by non-commutative smeared distributions. We discuss the soluti…
On localization of universal scalar fields in a tachyonic de Sitter thick braneworld
Alfonso Diaz-Furlong, Alfredo Herrera-Aguilar, Roman Linares +2
Braneworld models may yield interesting effects ranging from high-energy physics to cosmology, or even some low-energy physics. Their mode structure modifies standard results in th…
Exact BPS bound for noncommutative baby Skyrmions
Andrei Domrin, Olaf Lechtenfeld, Roman Linares +1
The noncommutative baby Skyrme model is a Moyal deformation of the two-dimensional sigma model plus a Skyrme term, with a group-valued or Grassmannian target. Exact abelian soliton…
Minimal Stability in Maximal Supergravity
Andrea Borghese, Roman Linares, Diederik Roest
Recently, it has been shown that maximal supergravity allows for non-supersymmetric AdS critical points that are perturbatively stable. We investigate this phenomenon of stability…
Casimir force in brane worlds: coinciding results from Green's and Zeta function approaches
Roman Linares, Hugo A. Morales-Tecotl, Omar Pedraza
Casimir force encodes the structure of the field modes as vacuum fluctuations and so it is sensitive to the extra dimensions of brane worlds. Now, in flat spacetimes of arbitrary d…
Flux Compactifications, Gauge Algebras and De Sitter
Giuseppe Dibitetto, Roman Linares, Diederik Roest
The introduction of (non-)geometric fluxes allows for N=1 moduli stabilisation in a De Sitter vacuum. The aim of this letter is to assess to what extent this is true in N=4 compact…
The Bianchi Classification of Maximal D=8 Gauged Supergravities
Eric Bergshoeff, Ulf Gran, Roman Linares +3
We perform the generalised dimensional reduction of D=11 supergravity over three-dimensional group manifolds as classified by Bianchi. Thus, we construct eleven different maximal D…
Domain Walls of D=8 Gauged Supergravities and their D=11 Origin
N. Alonso-Alberca, E. Bergshoeff, U. Gran +3
Performing a Scherk-Schwarz dimensional reduction of D=11 supergravity on a three-dimensional group manifold we construct five D=8 gauged maximal supergravities whose gauge groups…
Domain Walls and the Creation of Strings
Eric Bergshoeff, Ulf Gran, Roman Linares +2
The phenomenon of creation of strings, occurring when particles pass through a domain wall and related to the Hanany-Witten effect via dualities, is discussed in ten and nine dimen…
(Non-)Abelian Gauged Supergravities in Nine Dimensions
E. Bergshoeff, T. de Wit, U. Gran +2
We construct five different two-parameter massive deformations of the unique nine-dimensional N=2 supergravity. All of these deformations have a higher-dimensional origin via Scher…
Weyl Invariant p-brane and Dp-brane actions
J. Antonio García, Román Linares, J. David Vergara
Conformal invariant new forms of -brane and D-brane actions are proposed. The field content of these actions are: an induced metric, gauge fields, an auxiliary metric and an…
Hamiltonian Solution of the Schwinger Model with Compact U(1)
Román Linares, Luis F. Urrutia, J. David Vergara
The complete exact solution of the Schwinger model with compact gauge group U(1), in the Hamiltonian approach, is presented . The compactification is imposed by demanding that the…