3 papers
hep-th2026
Baryon Junction and String Interactions: Part II
Xuzixiang Lou, Siwei Zhong
We study junctions between confining strings. These junctions arise in Yang-Mills theories, and we focus on their universal low-energy dynamics. Using open-closed duality, we map j…
hep-th2025
Where Non-Invertible Symmetries End: Twist Defects for Electromagnetic Duality
Shu-Heng Shao, Siwei Zhong
We study novel conformal twist defects in 4d Maxwell theory, around which electric and magnetic fields are exchanged. These are codimension-2 defects living at the end of topologic…
cond-mat.quant-gas2024
Impurities in Schrödinger field theories and s-wave resonance
Avia Raviv-Moshe, Siwei Zhong
We study point impurities in non-relativistic quantum field theories, with a focus on scale-invariant fixed points. We establish the framework of conformal defects in Schrödinger f…