Tunneling dynamics of an oscillating universe model

Martin Bojowald, Pip Petersen

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Quasiclassical methods for non-adiabatic quantum dynamics can reveal new features of quantum effects, such as tunneling evolution, that are harder to analyze in standard treatments based on wave functions of stationary states. Here, these methods are applied to an oscillating universe model introduced recently. Our quasiclassical treatment correctly describes several expected features of tunneling states, in particular just before and after tunneling into a trapped region where a model universe may oscillate through many cycles of collapse and expansion. As a new result, the oscillating dynamics is found to be much less regular than in the classical description, revealing a succession of cycles with varying maximal volume even when the matter ingredients and their parameters do not change.

Original languageEnglish (US)
Article number007
JournalJournal of Cosmology and Astroparticle Physics
Issue number5
StatePublished - May 1 2022

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics


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