56 citations · 94 across the 17 of their papers we have counts for
18 papers
Waterfall-modulated -attractors
Renata Kallosh, Andrei Linde, Yusuke Yamada
Hybrid -attractor models \cite{Kallosh:2022ggf} can have significantly greater values of and smaller , while preserving the relation , which is va…
Quintessential α-attractors, updated
Renata Kallosh, Andrei Linde, Marina Shmakova +1
Quintessential -attractor models of single-field inflation and evolving dark energy were constructed about a decade ago. Recently, it was pointed out that some of them might be…
Inflation, Open Universes, and Dark Energy
Anton Chudaykin, Mikhail M. Ivanov, Renata Kallosh +3
We study the impact of spatial curvature () and dynamical dark energy (parametrized by and ) on the spectral index using a combination of cosmic microwave bac…
Unification of polynomial and exponential cosmological attractors
Renata Kallosh, Andrei Linde
We introduce a family of simple -attractor models that can interpolate between exponential and polynomial cosmological attractors. By varying the interpolation parameter in…
New Exponential and Polynomial -attractors
Renata Kallosh, Andrei Linde
We introduce a new family of cosmological attractors with non-minimal coupling of gravity and non-canonical kinetic terms. In the Einstein frame, these models transform into a clas…
Singular -attractors
Renata Kallosh, Andrei Linde
-attractor models naturally appear in supergravity with hyperbolic geometry. The simplest versions of -attractors, T- and E-models, originate from theories with non-singular…
Streamlined Supergravity
Renata Kallosh, Andrei Linde
The textbook N=1 supergravity has an F-term potential depending on a superpotential and a Kahler potential , with the scalar potential $V(z^i, \ba…
The BAO-CMB Tension and Implications for Inflation
Elisa G. M. Ferreira, Evan McDonough, Lennart Balkenhol +3
The scalar spectral index is a powerful test of inflationary models. The tightest constraint on to date derives from the combination of cosmic microwave background (CMB…
Post-inflationary enhancement of adiabatic perturbations in modular cosmology
Rodrigo Gonzalez Quaglia, Martino Michelotti, Diederik Roest +3
We show that multi-field inflationary models with negligible turning in field space during inflation can lead to an effective sourcing of adiabatic from entropic perturbations {\it…
On the Present Status of Inflationary Cosmology
Renata Kallosh, Andrei Linde
We give a brief review of the basic principles of inflationary theory and discuss the present status of the simplest inflationary models that can describe Planck/BICEP/Keck observa…
Attractors in Supergravity
Renata Kallosh, Andrei Linde
The concept of attractors, well-known in classical mechanics, proved to be very productive in supergravity, in the theory of black holes and inflationary cosmology. We start with a…
ACT, SPT, and chaotic inflation
Renata Kallosh, Andrei Linde, Diederik Roest
We show that the simplest generalization of the chaotic inflation model with nonminimal coupling to gravity provides a good match to the results o…
Axion Stabilization in Modular Cosmology
John Joseph Carrasco, Renata Kallosh, Andrei Linde +1
The invariant -attractor models have plateau potentials with respect to the inflaton and axion fields. The potential in the axion direction is almost exactly…
Double Exponents in Cosmology
Renata Kallosh, Andrei Linde
Recently proposed invariant -attractor models have plateau potentials with respect to the inflaton and axion fields. The slope of the potential in the inflato…
Landscape of Modular Cosmology
Renata Kallosh, Andrei Linde
We investigate the global structure of the recently discovered family of -invariant potentials describing inflationary -attractors. These potentials have an in…
Cosmological Attractors
Renata Kallosh, Andrei Linde
We study cosmological theory where the kinetic term and potential have symmetry. Potentials have a plateau at large values of the inflaton field, where the axion…
On Regularization Scheme Dependence of Predictions in Inflationary Cosmology
Andrei Linde, Arthur Mezhlumian
We show that there exists a large class of regularization schemes for probabilistic predictions in the theory of a self-reproducing inflationary univere, all of which eliminate the…
Supersymmetric Balance of Forces and Condensation of BPS States
Renata Kallosh, Andrei Linde
Until now all known static multi black hole solutions described BPS states with charges of the same sign. Such solutions could not be related to flat directions in the space of BPS…