报告题目:Towards phenomenology of quantum cosmology

报告人：Dr. Jacub Bilskikuba

报告时间：10：00--11：00

报告地点：理学楼教师活动中心

Title: Towards phenomenology of quantum cosmology

Time and location：8月13日 10：00--11：00 理学楼教师活动中心
Abstract: Canonical Loop Quantum Gravity is a nonperturbative theory that aims at finding the quantum dynamics of the Einsteinian gravitational field, but its formalism can be naturally extended to matter fields. I will explain how to construct well defined Hamitonian Constraint Operator (HCO) for all the fundamental interactions. Considering the models with diagonal spatial metric, I will get analytically the matrix elements of the HCO. I will present how at the leading order, the actions of HCO reproduce the appropriate classical expressions.

The next to the leading order corrections to the matrix elements of the HCO, are considered as perturbations in the Effective Hamiltonian Equation (EHE). Depending on the field content in EHE, it can be used to different physical models. One can study the early stages of the inflation period, possible corrections to Higgs (or Goldstone) mechanism, or to the vacuum energy (cosmological constant). One can also use it to compare with linearized perturbative quantum gravity.

个人介绍：Dr. Jacub Bilskikuba, he got his PhD. in Fudan University.