I face this problem at every stage of my life after graduation. I have searched for many sample research plans, CVs, and cover letters, but none of them were for someone who has finished their education and doesn't work anywhere right now.
I searched for the answer and even asked it from several people, their suggestion was:
- used your home postal code and address for cover letter
- use your last affiliation that you had (the university you have finished your education at)
- you are not allowed to use your last affiliation since you are not an employee there now. If you were to use your last affiliation it could assumed that your are an agent of your university who applied (for example as a mission)
What should I do? Which affiliation is correct to write? Is it ok to write "independent researcher, Ph.D from X univerisity"? Whenever I am not allowed to write such a thing, what is another good option?