On the Fate of Bubble Universes on Non-Vacuum Backgrounds D ...

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On the Fate of Bubble Universes on Non-Vacuum Backgrounds D ...

MOTIVATION

V (φ)

non-vacuum

state

φ1

CONTEXT: TUNNELING ON THE LANDSCAPE

◮ Classically: field trapped in some vacuum, cannot move through ong>theong> landscape

◮ Quantum mechanically: vacua metastable - e.g. tunneling by CdL process

◮ CdL process: nucleation ong>ofong> bubbles ong>ofong> new vacuum that expand into ong>theong> old

vacuum - first order PT (a form ong>ofong> old inflation)

◮ Here: effects on a dS bubble when nucleated from a non-vacuum precursor state

◮ But why should one do that?

dS

φ2

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