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SUPERGRAVITY UNIFIED MODELS [PDF]
Advanced Series on Directions in High Energy Physics, 1998 The development of supergravity unified models and their implications for current and future experiments are discussed.
Prāṇ Nath, R Arnowitt
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Multi-Field versus Single-Field in the Supergravity Models of Inflation and Primordial Black Holes
Universe, 2021 We review the models unifying inflation and Primordial Black Hole (PBH) formation, which are based on the modified (Starobinsky-type) supergravity. We begin with the basic (Starobinsky) inflationary model of modified gravity and its alpha-attractor-type ...
Sergei V. Ketov
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Quintessence models in supergravity [PDF]
Physical Review D, 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. This suggests that we should be considering models in the context of supergravity.
Nelson J Nunes
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Minimal supergravity models of inflation [PDF]
Physical Review D, 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 multiplet, or to a dual formulation with a linear multiplet and a massive tensor field. In both cases the
Renata Kallosh +2 more
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Supergravity realisations of λ-models
Journal of High Energy PhysicsWe construct solutions of type-II supergravity based on multiple copies and/or mixings of λ-deformed coset CFTs on SO n + 1 k SO n k $$ \frac{\textrm{SO}{\left(n+1\right)}_k}{\textrm{SO}{(n)}_k} $$ , with n = 2, 3, 4.
Giuseppe Casale, Georgios Itsios
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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
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Building models of inflation in no-scale supergravity [PDF]
International Journal of Modern Physics D, 2020 After reviewing the motivations for cosmological inflation formulated in the formalism of supersymmetry, we argue that the appropriate framework is that of no-scale supergravity. We then show how to construct within this framework inflationary models whose predictions for the tilt in the spectrum of scalar perturbations, [Formula: see text], and the ...
Natsumi Nagata +2 more
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Radiative corrections in supergravity models of inflation
Journal of High Energy PhysicsSupergravity provides the natural supersymmetric framework for early universe cosmology. A broad class of inflationary models in no-scale supergravity yields tree-level predictions for cosmic microwave background (CMB) observables that closely resemble ...
John Ellis +4 more
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Developments in Supergravity Unified Models [PDF]
Advanced Series on Directions in High Energy Physics, 2010 A review is given of developments in supergravity unified models proposed in 1982 and their implications for current and future experiment are discussed.
Prāṇ Nath
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Supergravity-based inflation models: a review [PDF]
Classical and Quantum Gravity, 2011 30 pages, invited review for Classical and Quantum Gravity, published ...
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