Fwd: [Indico] Tunneling in QFT: Silvia Pla Garcia - Thursday 8 February

[Miha Nemevsek]

Dear all,

feel free to follow the online series on false vacuum decay this coming Thursday at 2 pm.

Best regards,

Miha

Begin forwarded message:

From: <andreas...@physics.uu.se>

Subject: [Indico] Tunneling in QFT: Silvia Pla Garcia - Thursday 8 February

Date: 2 February 2024 at 13:11:57 CET

Dear all,

We are pleased to announce the second seminar in the Tunneling in QFT series, which will take place at 14:00 CET on Thursday 8 February, and will be given by Silvia Pla Garcia (King's College London), with title and abstract:

Can quantum tunnelling induce a cosmic bounce?
If we imagine rewinding the universe to early times, the scale factor shrinks and the existence of a finite spatial volume may play a role in quantum tunnelling effects in a closed universe. In this talk, I will present a novel mechanism to induce a cosmological bounce that is purely generated by quantum fluctuations without the need for exotic matter or modified gravity. The quantum-induced bounce emerges when we allow a scalar field to tunnel between two degenerate minima. I will also explain how the picture can change in the presence of anisotropies, identifying a criterium for a successful bounce in terms of the size of the closed universe and the properties of the quantum field.

The Zoom link and joining details are:
https://uu-se.zoom.us/j/65015689000

Meeting ID: 650 1568 9000
Passcode: 107002

For further details of upcoming talks in the Tunneling in QFT series, or to change your registration, see:
https://indico.cern.ch/event/1346195/registrations/99740/?token=e4a7f612-ddb0-42fd-9ee3-e37658b45938

Best regards,

Andreas Ekstedt, Oliver Gould and Miha Nemevšek