Finite Time Domain Dynamics of Scalar Fields  

作　　者：Emmanouil George Thrapsaniotis Emmanouil George Thrapsaniotis(Athens, Greece)

机构地区：[1]Athens, Greece

出　　处：《Journal of Applied Mathematics and Physics》2025年第2期454-464,共11页应用数学与应用物理(英文)

摘　　要：In the present paper, we study the finite time domain dynamics of a scalar field interacting with external sources. We expand both the scalar field and the corresponding Hamiltonian in annihilation and creation operators and evaluate the relevant path integral. So, we get the Green function within a finite time interval. We apply the solution to the relevant Cauchy problem and further, we study the dynamics of scalar fields coupled with electromagnetic fields via perturbative methods.In the present paper, we study the finite time domain dynamics of a scalar field interacting with external sources. We expand both the scalar field and the corresponding Hamiltonian in annihilation and creation operators and evaluate the relevant path integral. So, we get the Green function within a finite time interval. We apply the solution to the relevant Cauchy problem and further, we study the dynamics of scalar fields coupled with electromagnetic fields via perturbative methods.

关 键 词：Scalar Fields Finite Time Evolution Electromagnetic Field Perturbative Methods 

分 类 号：O17[理学—数学]