中国物理B ›› 2003, Vol. 12 ›› Issue (12): 1374-1377.doi: 10.1088/1009-1963/12/12/006
• THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS • 上一篇 下一篇
应和平, 张剑波
Ying He-Ping (应和平), Zhang Jian-Bo (张剑波)
摘要: We numerically calculate the topological charge of the gauge configurations on a finite lattice by the fermionic method with overlap fermions. By using the lattice index theorem, we identify the index of the massless overlap fermion operator to the topological charge of the background gauge configuration. The resulting topological susceptibility χ is in good agreement with the anticipation made by Witten and Veneziano.
中图分类号: (Lattice gauge theory)