3 papers
hep-ph2026
How well can the QCD axion hide?
Sung Mook Lee, Maria Ramos, Fuensanta Vilches
Motivated UV frameworks generically predict the existence of multiple axion fields. Their interplay gives rise to novel collective phenomena - including level crossings and the for…
hep-th2025
Multi-Instantons, Multi-Axions, and Non-Invertible Symmetries in 4d QFT
Sungwoo Hong, Hyungyu Kim, Sung Mook Lee +1
We study non-invertible global symmetries in 4d quantum field theories, aiming to generalize existing discussions to theories with multiple instantons and axions, and to make the s…
cs.LG2025
Semantics at an Angle: When Cosine Similarity Works Until It Doesn't
Kisung You
Cosine similarity is a standard comparison rule for learned representations in information retrieval, natural language processing, computer vision, and multimodal learning. Its pop…