Publications of Jean-Luc Lehners

Köhn, M.; Lavrelashvili, G. V.; Lehners, J.-L.: Towards a Solution of the Negative Mode Problem in Quantum Tunnelling with Gravity. Physical Review D 92, 023506 (2015)

Lehners, J.-L.: Classical Inflationary and Ekpyrotic Universes in the No-Boundary Wavefunction. Physical Review D 91, 083525 (2015)

Lehners, J.-L.: New Ekpyrotic Quantum Cosmology. Physics Letters B 750, pp. 242 - 246 (2015)

Lehners, J.-L.; Wilson-Ewing, E.: Running of the scalar spectral index in bouncing cosmologies. Journal of Cosmology and Astroparticle Physics 10, 038 (2015)

Battarra, L.; Köhn, M.; Lehners, J.-L.; Ovrut, B. A.: Cosmological Perturbations Through a Non-Singular Ghost-Condensate/Galileon Bounce. Journal of Cosmology and Astroparticle Physics 2014 (7), 007 (2014)

Battarra, L.; Lavrelashvili, G. V.; Lehners, J.-L.: Creation of wormholes by quantum tunnelling in modified gravity theories. Physical Review D 90, 124015 (2014)

Battarra, L.; Lehners, J.-L.: On the Quantum-To-Classical Transition for Ekpyrotic Perturbations. Physical Review D 89, 063516 (2014)

Battarra, L.; Lehners, J.-L.: On the No-Boundary Proposal for Ekpyrotic and Cyclic Cosmologies. Journal of Cosmology and Astroparticle Physics 2014 (12 ), p. 23 - 23 (2014)

Fertig, A.; Lehners, J.-L.; Mallwitz, E.: Ekpyrotic Perturbations With Small Non-Gaussian Corrections. Physical Review D 89, 103537 (2014)

Gwyn, R.; Lehners, J.-L.: Non-Canonical Inflation in Supergravity. Journal of High Energy Physics 2014, 050 (2014)

Ijjas, A.; Lehners, J.-L.; Steinhardt, P. J.: General mechanism for producing scale-invariant perturbations and small non-Gaussianity in ekpyrotic models. Physical Review D 89, 123520 (2014)

Koehn, M.; Lehners, J.-L.; Ovrut, B. A.: Cosmological Super-Bounce. Physical Review D 90 (2), 025005 (2014)

Battarra, L.; Lavrelashvili, G. V.; Lehners, J.-L.: Zoology of instanton solutions in flat potential barriers. Physical Review D 88 (10), 104012 (2013)

Koehn, M.; Lehners, J.-L.; Ovrut, B.: Ghost Condensate in N=1 Supergravity. Physical Review D 87 (6), 065022 (2013)

Koehn, M.; Lehners, J.-L.; Ovrut, B.: Supersymmetric cubic Galileons have ghosts. Physical Review D 88, 023528 (2013)

Lehners, J.-L.; Steinhardt, P. J.: Planck 2013 results support the cyclic universe. Physical Review D 87 (12), 123533 (2013)

Battarra, L.; Lavrelashvili, G. V.; Lehners, J.-L.: Negative Modes of Oscillating Instantons. Physical Review D 86, 124001 (2012)

Johnson, M. C.; Lehners, J.-L.: Cycles in the Multiverse. Physical Review D 85 (10), 103509 (2012)

Koehn, M.; Lehners, J.-L.; Ovrut, B. A.: Higher-Derivative Chiral Superfield Actions Coupled to N=1 Supergravity. Physical Review D 86 , 085019 (2012)

Koehn, M.; Lehners, J.-L.; Ovrut, B. A.: DBI Inflation in N=1 Supergravity. Physical Review D 86 (12), 123510 (2012)