| Speaker: | Hiroshi Suzuki (Kyusyu U) |
|---|---|
| Title: | Energy-momentum tensor from the Yang-Mills gradient flow |
| Date (JST): | Thu, Apr 12, 2018, 13:40 - 14:55 |
| Place: | Seminar Room B |
| Related File: | 2052.pdf |
| Abstract: | In quantum field theory, if we do not use or if we do not know a regularization which preserves a symmetry under consideration, the construction of the corresponding Noether current as a composite operator is generally a non-trivial problem. A typical and physically relevant example of this sort is the energy-momentum tensor—the Noether current associated with the infinitesimal translational invariance—in lattice field theory. In this talk, I will present a new approach to this sort of problem on the basis of the so-called Yang-Mills gradient flow. In this approach, one constructs a universal formula of the energy—momentum tensor for instance which is independent of the regularization. Some non-pertubative application of the universal formula to lattice QCD is also presented. |
