About
Confinement and false vacuum decay are cornerstone non-perturbative phenomena in quantum field theory. Both emerge when an explicit symmetry breaking field lifts the degeneracy of a vacuum. In this framework, confined states act as droplets of the "false" vacuum, while decay occurs through the nucleation of "true" vacuum bubbles via quantum tunneling. Recent breakthroughs in controllable quantum platforms, including trapped ions and Rydberg atom arrays, have moved these concepts from theory to the lab. While confinement has already been observed, real time investigations of false vacuum decay are now on the horizon. I will discuss how these phenomena manifest in quantum spin chains, focusing on real time dynamics following a quantum quench and experimental setups that provide a controlled environment to study quantum tunneling and bubble nucleation.
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The talk
Credits and licence
- Institution
- CERN
- Speaker
- Gianluca Lagnese
- Year
- 2026
- Language
- English
- Subjects
- Physics
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed