Cannot be modified. Being hired means that the thesis has passed the examination. At this time, modifying the author's unit will affect the academic level of the paper. Moreover, it is not allowed to change the author and unit after the paper is hired. Next, according to this question in detail:

It is difficult to publish sci papers, and it is not surprising that there are many problems in this process. If you want to change the author's unit, it is best to submit the manuscript before employment or before employment. Therefore, we should be careful in submitting manuscripts and do all the work well. Sci papers are not easy to pass, so don't change them easily.

The process of publishing papers is complicated, especially sci papers, which belong to international core journals and have high requirements for papers. Therefore, it is not easy to pass the exam. There are more people who need to publish sci papers. According to the degree of contribution to the paper, we are divided into the first author, the second author and the third author. The higher the position, the greater the role, especially when evaluating professional titles. The higher the position, the more points you get.