Observation of false vacuum decay via bubble formation in ferromagnetic superfluids
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arXiv
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866911953918623744 |
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| author | Zenesini, Alessandro Berti, Anna Cominotti, Riccardo Rogora, Chiara Moss, Ian G. Billam, Thomas P. Carusotto, Iacopo Lamporesi, Giacomo Recati, Alessio Ferrari, Gabriele |
| author_facet | Zenesini, Alessandro Berti, Anna Cominotti, Riccardo Rogora, Chiara Moss, Ian G. Billam, Thomas P. Carusotto, Iacopo Lamporesi, Giacomo Recati, Alessio Ferrari, Gabriele |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2305_05225 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Observation of false vacuum decay via bubble formation in ferromagnetic superfluids Zenesini, Alessandro Berti, Anna Cominotti, Riccardo Rogora, Chiara Moss, Ian G. Billam, Thomas P. Carusotto, Iacopo Lamporesi, Giacomo Recati, Alessio Ferrari, Gabriele High Energy Physics - Phenomenology Quantum Gases Statistical Mechanics High Energy Physics - Theory Quantum Physics 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. |
| title | Observation of false vacuum decay via bubble formation in ferromagnetic superfluids |
| topic | High Energy Physics - Phenomenology Quantum Gases Statistical Mechanics High Energy Physics - Theory Quantum Physics |
| url | https://arxiv.org/abs/2305.05225 |