Symmetric Mass Generation at a Multicritical Point
Published:Dec 31, 2025 12:57
•1 min read
•ArXiv
Analysis
This paper investigates a lattice fermion model with three phases, including a novel symmetric mass generation (SMG) phase. The authors use Monte Carlo simulations to study the phase diagram and find a multicritical point where different critical points merge, leading to a direct second-order transition between massless and SMG phases. This is significant because it provides insights into the nature of phase transitions and the emergence of mass in fermion systems, potentially relevant to understanding fundamental physics.
Key Takeaways
- •The paper explores a lattice fermion model with massless, SSB, and SMG phases.
- •It identifies a multicritical point where critical points merge.
- •This leads to a direct second-order transition between massless and SMG phases.
- •The findings contribute to understanding phase transitions and mass generation in fermion systems.
Reference
“The discovery of a direct second-order transition between the massless and symmetric massive fermion phases.”