From the 1 of 4 linked papers with an AI index.
4 papers
Quantum States Prepared by Wormholes: Long-Wavelength Deviations from Bunch-Davies
George Lavrelashvili, Jean-Luc Lehners
The paper investigates how wormhole-mediated nucleation of baby universes sets the quantum state of scalar and tensor fluctuations, showing that while short‑wavelength modes match…
Birth of Inflationary Universes via Wineglass Wormholes and their No-Boundary Relatives
George Lavrelashvili, Jean-Luc Lehners
We study Euclidean wineglass wormholes, which mediate the nucleation of inflationary spacetimes from an existing spacetime with asymptotically flat or Anti-de Sitter regions. These…
Nucleating an Inflationary Universe: Euclidean Wormholes and their No-Boundary Limit
George Lavrelashvili, Jean-Luc Lehners
No-boundary instantons and Euclidean "wineglass" wormholes have both been proposed as providing suitable initial conditions for the current expanding phase of our universe, and in…
Delicate curvature bounces in the no-boundary wave function and in the late universe
Jean-Luc Lehners, Jerome Quintin
Theoretical considerations motivate us to consider vacuum energy to be able to decay and to assume that the spatial geometry of the universe is closed. Combining both aspects leads…