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Delicate curvature bounces in the no-boundary wave function and in the late universe
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2025
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Jean-Luc Lehners
Jerome Quintin
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Stability of axion-dilaton wormholes
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2024
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Caroline Jonas
George Lavrelashvili
Jean-Luc Lehners
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PDF
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Delicate curvature bounces in the no-boundary wave function and in the
late universe
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2024
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Jean-Luc Lehners
Jerome Quintin
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PDF
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NUTs, Bolts and Stokes Phenomena in the No-Boundary Wave Function
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2024
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Jean-Luc Lehners
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A small Universe
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2024
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Jean-Luc Lehners
Jerome Quintin
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PDF
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Review of the no-boundary wave function
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2023
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Jean-Luc Lehners
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How to create universes with internal flux
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2023
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Jean-Luc Lehners
Rahim Leung
K.S. Stelle
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Allowable complex scalars from Kaluza-Klein compactifications and metric rescalings
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2023
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Jean-Luc Lehners
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Review of the No-Boundary Wave Function
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2023
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Jean-Luc Lehners
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A Zoo of Axionic Wormholes
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2023
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Caroline Jonas
George Lavrelashvili
Jean-Luc Lehners
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A small Universe
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2023
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Jean-Luc Lehners
Jerome Quintin
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Stability of Axion-Dilaton Wormholes
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2023
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Caroline Jonas
George Lavrelashvili
Jean-Luc Lehners
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Higher-Order Gravity, Finite Action, and a Safe Beginning for the Universe
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2023
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Jean-Luc Lehners
K.S. Stelle
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Uses of complex metrics in cosmology
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2022
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Caroline Jonas
Jean-Luc Lehners
Jerome Quintin
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No smooth beginning for spacetime
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2022
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Jean-Luc Lehners
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Revisiting the no-boundary proposal with a scalar field
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2022
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Caroline Jonas
Jean-Luc Lehners
Vincent Meyer
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PDF
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Allowable complex metrics in minisuperspace quantum cosmology
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2022
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Jean-Luc Lehners
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Scalar lumps with two horizons
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2022
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George Lavrelashvili
Jean-Luc Lehners
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How to Create Universes with Internal Flux
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2022
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Jean-Luc Lehners
Rahim Leung
K. S. Stelle
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Allowable Complex Scalars from Kaluza-Klein Compactifications and Metric Rescalings
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2022
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Jean-Luc Lehners
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PDF
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Wave function of simple universes analytically continued from negative to positive potentials
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2021
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Jean-Luc Lehners
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PDF
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Scalar lumps with a horizon
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2021
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George Lavrelashvili
Jean-Luc Lehners
Marc Schneider
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PDF
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Cosmological consequences of a principle of finite amplitudes
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2021
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Caroline Jonas
Jean-Luc Lehners
Jerome Quintin
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PDF
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Quantum circuit complexity of primordial perturbations
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2021
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Jean-Luc Lehners
Jerome Quintin
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PDF
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No-boundary solutions are robust to quantum gravity corrections
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2020
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Caroline Jonas
Jean-Luc Lehners
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Lessons for quantum cosmology from anti–de Sitter black holes
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2020
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Alice Di Tucci
Michał P. Heller
Jean-Luc Lehners
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Homogeneous transitions during inflation: A description in quantum cosmology
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2020
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Sebastian F. Bramberger
Alice Di Tucci
Jean-Luc Lehners
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No-boundary prescriptions in Lorentzian quantum cosmology
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2019
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Alice Di Tucci
Jean-Luc Lehners
Laura Sberna
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PDF
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Safe beginning for the Universe?
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2019
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Jean-Luc Lehners
K.S. Stelle
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PDF
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Quantum incompleteness of inflation
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2019
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Alice Di Tucci
Job Feldbrugge
Jean-Luc Lehners
Neil Turok
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PDF
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Kerr-NUT-de Sitter as an inhomogeneous non-singular bouncing cosmology
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2019
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Andrés Anabalón
Sebastian F. Bramberger
Jean-Luc Lehners
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Nonsingular bounces catalyzed by dark energy
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2019
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Sebastian F. Bramberger
Jean-Luc Lehners
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PDF
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No-Boundary Proposal as a Path Integral with Robin Boundary Conditions
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2019
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Alice Di Tucci
Jean-Luc Lehners
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PDF
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Unstable no-boundary fluctuations from sums over regular metrics
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2018
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Alice Di Tucci
Jean-Luc Lehners
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PDF
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Small-field and scale-free: inflation and ekpyrosis at their extremes
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2018
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Jean-Luc Lehners
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PDF
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No smooth beginning for spacetime
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2018
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Jean-Luc Lehners
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PDF
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Inconsistencies of the New No-Boundary Proposal
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2018
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Job Feldbrugge
Jean-Luc Lehners
Neil Turok
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PDF
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No rescue for the no boundary proposal: Pointers to the future of quantum cosmology
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2018
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Job Feldbrugge
Jean-Luc Lehners
Neil Turok
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Inconsistencies of the New No-Boundary Proposal
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2018
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Job Feldbrugge
Jean-Luc Lehners
Neil Turok
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PDF
Chat
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Wormhole creation by quantum tunnelling
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2017
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Lorenzo Battarra
George Lavrelashvili
Jean-Luc Lehners
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PDF
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Spinor driven cosmic bounces and their cosmological perturbations
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2017
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Shane Farnsworth
Jean-Luc Lehners
Taotao Qiu
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PDF
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No Smooth Beginning for Spacetime
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2017
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Job Feldbrugge
Jean-Luc Lehners
Neil Turok
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PDF
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Quantum transitions through cosmological singularities
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2017
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Sebastian F. Bramberger
Thomas Hertog
Jean-Luc Lehners
Yannick Vreys
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PDF
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Lorentzian quantum cosmology
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2017
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Job Feldbrugge
Jean-Luc Lehners
Neil Turok
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PDF
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Wavefunction of anisotropic inflationary universes with no-boundary conditions
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2017
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Sebastian F. Bramberger
Shane Farnsworth
Jean-Luc Lehners
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PDF
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Converting entropy to curvature perturbations after a cosmic bounce
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2016
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Angelika Fertig
Jean-Luc Lehners
Enno Mallwitz
Edward Wilson-Ewing
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Quantum tunneling from paths in complex time
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2016
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Sebastian F. Bramberger
George Lavrelashvili
Jean-Luc Lehners
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Conflation: a new type of accelerated expansion
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2016
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Angelika Fertig
Jean-Luc Lehners
Enno Mallwitz
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PDF
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Nonsingular bouncing cosmology: Consistency of the effective description
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2016
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Michael Koehn
Jean-Luc Lehners
Burt A. Ovrut
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PDF
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The non-minimal ekpyrotic trispectrum
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2016
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Angelika Fertig
Jean-Luc Lehners
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Wormhole creation by quantum tunnelling
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2016
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Lorenzo Battarra
George Lavrelashvili
Jean-Luc Lehners
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PDF
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Running of the scalar spectral index in bouncing cosmologies
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2015
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Jean-Luc Lehners
Edward Wilson-Ewing
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New ekpyrotic quantum cosmology
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2015
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Jean-Luc Lehners
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Towards a solution of the negative mode problem in quantum tunnelling with gravity
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2015
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Michael Koehn
George Lavrelashvili
Jean-Luc Lehners
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PDF
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Classical inflationary and ekpyrotic universes in the no-boundary wavefunction
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2015
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Jean-Luc Lehners
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On the creation of the universe via ekpyrotic instantons
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2015
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Lorenzo Battarra
Jean-Luc Lehners
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On the no-boundary proposal for ekpyrotic and cyclic cosmologies
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2014
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Lorenzo Battarra
Jean-Luc Lehners
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Creation of wormholes by quantum tunnelling in modified gravity theories
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2014
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Lorenzo Battarra
George Lavrelashvili
Jean-Luc Lehners
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Cosmological super-bounce
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2014
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Michael Koehn
Jean-Luc Lehners
Burt A. Ovrut
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PDF
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Cosmological perturbations through a non-singular ghost-condensate/Galileon bounce
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2014
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Lorenzo Battarra
Michael Koehn
Jean-Luc Lehners
Burt A. Ovrut
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PDF
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Ekpyrotic perturbations with small non-Gaussian corrections
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2014
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Angelika Fertig
Jean-Luc Lehners
Enno Mallwitz
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PDF
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Non-canonical inflation in supergravity
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2014
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Rhiannon Gwyn
Jean-Luc Lehners
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PDF
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Quantum-to-classical transition for ekpyrotic perturbations
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2014
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Lorenzo Battarra
Jean-Luc Lehners
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Non-Canonical Ination in Supergravity
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2014
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Rhiannon Gwyn
Jean-Luc Lehners
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PDF
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Zoology of instanton solutions in flat potential barriers
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2013
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Lorenzo Battarra
George Lavrelashvili
Jean-Luc Lehners
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Scalars with higher derivatives in supergravity and cosmology
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2013
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Jean-Luc Lehners
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PDF
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Supersymmetric cubic Galileons have ghosts
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2013
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Michael Koehn
Jean-Luc Lehners
Burt A. Ovrut
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PDF
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Planck 2013 results support the cyclic universe
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2013
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Jean-Luc Lehners
Paul J. Steinhardt
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Planck2013 results support the simplest cyclic models
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2013
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Jean-Luc Lehners
Paul J. Steinhardt
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PDF
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Ghost condensate in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi><mml:mo mathvariant="bold">=</mml:mo><mml:mn>1</mml:mn></mml:math>supergravity
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2013
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Michael Koehn
Jean-Luc Lehners
Burt A. Ovrut
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Supersymmetric Galileons Have Ghosts
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2013
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Michael Koehn
Jean-Luc Lehners
Burt A. Ovrut
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DBI inflation in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="script">N</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:math>supergravity
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2012
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Michael Koehn
Jean-Luc Lehners
Burt A. Ovrut
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Negative modes of oscillating instantons
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2012
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Lorenzo Battarra
George Lavrelashvili
Jean-Luc Lehners
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Higher-derivative chiral superfield actions coupled to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="script">N</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:math>supergravity
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2012
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Michael Koehn
Jean-Luc Lehners
Burt A. Ovrut
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PDF
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Eternal inflation with noninflationary pocket universes
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2012
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Jean-Luc Lehners
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PDF
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Cycles in the multiverse
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2012
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Matthew C. Johnson
Jean-Luc Lehners
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PDF
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Diversity in the phoenix universe
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2011
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Jean-Luc Lehners
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PDF
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Cosmic bounces and cyclic universes
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2011
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Jean-Luc Lehners
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PDF
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Supersymmetric Galileons
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2011
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Justin Khoury
Jean-Luc Lehners
Burt A. Ovrut
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PDF
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Supersymmetric<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>X</mml:mi><mml:mo>,</mml:mo><mml:mi>ϕ</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math>and the ghost condensate
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2011
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Justin Khoury
Jean-Luc Lehners
Burt A. Ovrut
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PDF
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Ekpyrotic Nongaussianity: A Review
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2010
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Jean-Luc Lehners
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Multifield cosmological perturbations at third order and the ekpyrotic trispectrum
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2009
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Jean-Luc Lehners
Sébastien Renaux‐Petel
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Erratum: Non-Gaussian density fluctuations from entropically generated curvature perturbations in ekpyrotic models [Phys. Rev. D<b>77</b>, 063533 (2008)]
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2009
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Jean-Luc Lehners
Paul J. Steinhardt
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Dark energy and the return of the phoenix universe
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2009
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Jean-Luc Lehners
Paul J. Steinhardt
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Non-Gaussianity as a Probe of the Physics of the Primordial Universe and the Astrophysics of the Low Redshift Universe
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2009
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Eiichiro Komatsu
Niayesh Afshordi
N. Bartolo
Daniel Baumann
J. R. Bond
Evgeny I. Buchbinder
Christian T. Byrnes
X. Chen
Daniel J. H. Chung
Asantha Cooray
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Ekpyrotic and cyclic cosmology
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2008
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Jean-Luc Lehners
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PDF
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Non-Gaussian density fluctuations from entropically generated curvature perturbations in ekpyrotic models
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2008
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Jean-Luc Lehners
Paul J. Steinhardt
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Bouncing negative-tension branes
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2008
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Jean-Luc Lehners
Neil Turok
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Generating ekpyrotic curvature perturbations before the big bang
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2007
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Jean-Luc Lehners
Paul McFadden
Neil Turok
Paul J. Steinhardt
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Kaluza–Klein induced supersymmetry breaking for braneworlds in type IIB supergravity
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2007
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Jean-Luc Lehners
Paul Smyth
K.S. Stelle
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Effective actions for heterotic M theory
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2007
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Jean-Luc Lehners
Paul McFadden
Neil Turok
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Colliding branes in heterotic M theory
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2007
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Jean-Luc Lehners
Paul McFadden
Neil Turok
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Bouncing and Colliding Branes
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2007
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Jean-Luc Lehners
Arttu Rajantie
Carlo Contaldi
Paul Dauncey
Horace Stoica
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D=5 M-theory radion supermultiplet dynamics
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2003
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Jean-Luc Lehners
K.S. Stelle
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