Related papers: Observation of false vacuum decay via bubble formation in ferromagnetic superfluids

Observation of false vacuum decay via bubble formation in ferromagnetic superfluids

URL: http://arxiv.org/abs/2305.05225v1
Date: Tue, 9 May 2023 07:41:08 GMT
Title: Observation of false vacuum decay via bubble formation in ferromagnetic superfluids
Authors: Alessandro Zenesini, Anna Berti, Riccardo Cominotti, Chiara Rogora, Ian G. Moss, Thomas P. Billam, Iacopo Carusotto, Giacomo Lamporesi, Alessio Recati, Gabriele Ferrari
Abstract summary: In quantum field theory, the decay of an extended metastable state into the real ground state is known as false vacuum decay'' Here, we observe bubble nucleation in isolated and highly controllable superfluid atomic systems.
Score: 47.187609203210705
License: http://creativecommons.org/licenses/by-nc-nd/4.0/
Abstract: In quantum field theory, the decay of an extended metastable state into the real ground state is known as ``false vacuum decay'' and it takes place via the nucleation of spatially localized bubbles. Despite the large theoretical effort to estimate the nucleation rate, experimental observations were still missing. Here, we observe bubble nucleation in isolated and highly controllable superfluid atomic systems, and we find good agreement between our results, numerical simulations and instanton theory opening the way to the emulation of out-of-equilibrium quantum field phenomena in atomic systems.

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