| 活动类型： | 学术活动 |
|---|---|
| 活动名称： | ICTP-AP Seminar: Chiral Approach to Massive Higher Spins |
| 地点： | 腾讯会议：973-6909-6865 |
| 主讲人： | Alexander Ochirov ( London Institute for Mathematical Sciences) |
| 联系人： | 孟老师 |
| 联系方式： | 010-82648142 |
| 开始时间： | 2022-10-19 16:00 |
| 结束时间： | 2022-10-19 17:00 |
| 说明: |
Abstract: Quantum field theory of higher-spin particles is a formidable subject, where preserving the physical number of degrees of freedom in the Lorentz-invariant way requires a host of auxiliary fields. They can be chosen to have a rich gauge-symmetry structure, but introducing consistent interactions in such approaches is still a non-trivial task, with massive higher-spin Lagrangians specified only up to three points. In this talk, I will discuss a new, chiral description for massive higher-spin particles, which in four spacetime dimensions allows to do away with the unphysical degrees of freedom. This greatly facilitates the introduction of consistent interactions. I will concentrate on three theories, in which higher-spin matter is coupled to electrodynamics, non-Abelian gauge theory or gravity. These theories are currently the only examples of consistently interacting field theories with massive higher-spin fields. |