6533b7d0fe1ef96bd125ac0c
RESEARCH PRODUCT
On cosmic quantum tunneling from “nothing”
Ramon LapiedraJuan Antonio Morales-lladosasubject
PhysicsHistoryInstantonCOSMIC cancer databasemedia_common.quotation_subjectUniverseComputer Science ApplicationsEducationGeneral Relativity and Quantum CosmologyTheoretical physicsNothingDe Sitter universeQuantum mechanicsEinstein field equationsSignature (topology)Quantum tunnellingmedia_commondescription
We extend to a general Λ-Eriedmann-Lemaitre-Robertson-Walker (ΛFLRW) a previous result by Vilenkin and others according to which a closed de Sitter universe could be created from "nothing". More specifically, our main result is that only the closed ΛFLRW universe (but not the open and flat ones) could be created from a corresponding instanton, that is, from the corresponding solution with signature +4 of the Einstein field equations. Before getting this result the suitable corresponding instantons are calculated. The result is in accordance with previous results by another authors obtained by different methods.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-04-28 | Journal of Physics: Conference Series |