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Limits of EFTs at finite temperature for strong phase transitions

Fabio Bernardo · CERN

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About

Phase transitions are violent and interesting phenomena that could have occurred in the early universe. Possible techniques to study these phenomena can be used in the presence of a hierarchy of scales, leading to the construction of finite temperature Effective Field Theories by integrating out heavier scales. These EFTs are reliable when the dynamics are mainly encoded in the most relevant operators. I will discuss the limits of such EFTs, showing how higher-dimensional operators affect the prediction of stronger transitions, including those detectable by LISA. These considerations impact the applicability of effective theory techniques, including their use in lattice studies..

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The talk

  1. Limits of EFTs at finite temperature for strong phase transitions 2025-08-26 · 9 min · CERN's player

Credits and licence

Institution
CERN
Department
TH institutes
Speaker
Fabio Bernardo
Year
2025
Language
English
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.
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