Results 31 to 40 of about 21,619,463 (236)

New duality-invariant models for nonlinear supersymmetric electrodynamics

Journal of High Energy Physics, 2023
We propose a new family of U(1) duality-invariant models for nonlinear N $$ \mathcal{N} $$ = 1 supersymmetric electrodynamics coupled to supergravity.
Sergei M. Kuzenko, Jake C. Stirling
doaj   +1 more source

Symmetries of supergravity backgrounds and supersymmetric field theory

Journal of High Energy Physics, 2020
In four spacetime dimensions, all N $$ \mathcal{N} $$ = 1 supergravity-matter systems can be formulated in the so-called U(1) superspace proposed by Howe in 1981.
Sergei M. Kuzenko, Emmanouil S.N. Raptakis   +1 more
doaj   +1 more source

Chromo-natural inflation in Supergravity

Physics Letters B, 2018
We present supergravity realizations of chromo-natural inflationary models. We show that by using superpotentials with “imaginary” holomorphic functions of the inflaton one can obtain effective theories of inflation that are also consistent truncations ...
Gianguido Dall'Agata
doaj   +1 more source

Adinkra foundation of component decomposition and the scan for superconformal multiplets in 11D, N $$ \mathcal{N} $$ = 1 superspace

Journal of High Energy Physics, 2020
For the first time in the physics literature, the Lorentz representations of all 2,147,483,648 bosonic degrees of freedom and 2,147,483,648 fermionic degrees of freedom in an unconstrained eleven dimensional scalar superfield are presented.
S. James Gates, Yangrui Hu, S.-N. Hazel Mak   +2 more
doaj   +1 more source

Non-relativistic three-dimensional supergravity theories and semigroup expansion method

Journal of High Energy Physics, 2021
In this work we present an alternative method to construct diverse non-relativistic Chern-Simons supergravity theories in three spacetime dimensions. To this end, we apply the Lie algebra expansion method based on semigroups to a supersymmetric extension
Patrick Concha, Marcelo Ipinza, Lucrezia Ravera, Evelyn Rodríguez   +3 more
doaj   +1 more source

False Vacuum Chaotic Inflation: The New Paradigm? [PDF]

, 1994
Recent work is reported on inflation model building in the context of supergravity and superstrings, with special emphasis on False Vacuum (`Hybrid') Chaotic Inflation.
A. D. Linde, A. D. Linde, A. D. Linde, A. Linde, A. R. Liddle, A. S. Goncharov, E. Copeland, F. C. Adams, K. Freese, K. Olive   +9 more
core   +2 more sources

Quintessence models in Supergravity [PDF]

, 2000
Scalar field models of quintessence typically require that the expectation value of the field today is of order the Planck mass, if we want them to explain the observed acceleration of the Universe.
A. Albrecht, A. G. Riess, A. Masiero, A. R. Liddle, B. de Carlos, B. Ratra, C. Kolda, C. Wetterich, E. J. Copeland, E. J. Copeland, F. Rosati, G. Huey, I. Affleck, I. Affleck, I. Zlatev, J. A. Casas, J. A. Frieman, K. Choi, L. López, M. Peloso, M. S. Turner, N. A. Bahcall, N. J. Nunes, P. Binétruy, P. Binétruy, P. Binétruy, P. Brax, P. Brax, P. de Bernardis, P. G. Ferreira, P. G. Ferreira, P. J. E. Peebles, P. J. E. Peebles, P. J. Steinhardt, R. R. Caldwell, S. Perlmutter, S. Podariu, T. Barreiro, T. Barreiro, T. Barreiro, T. R. Taylor   +40 more
core   +2 more sources

Minimal Supergravity Models of Inflation [PDF]

, 2013
We present a superconformal master action for a class of supergravity models with one arbitrary function defining the Jordan frame. It leads to a gauge-invariant action for a real vector multiplet, which upon gauge fixing describes a massive vector ...
S. Ferrara, R. Kallosh, Andrei Linde, M. Porrati   +3 more
semanticscholar   +1 more source

On the gauged Kähler isometry in minimal supergravity models of inflation [PDF]

, 2014
In this paper we address the question how to discriminate whether the gauged isometry group 𝒢Σ of the Kähler manifold Σ that produces a D‐type inflaton potential in a Minimal Supergravity Model is elliptic, hyperbolic or parabolic.
S. Ferrara, P. Fré, A. Sorin
semanticscholar   +1 more source

Poisson–Lie transformations and generalized supergravity equations

European Physical Journal C: Particles and Fields, 2021
In this paper we investigate Poisson–Lie transformation of dilaton and vector field $${\mathcal {J}}$$ J appearing in generalized supergravity equations. While the formulas appearing in literature work well for isometric sigma models, we present examples
Ladislav Hlavatý, Ivo Petr
doaj   +1 more source