As a master's student in theoretical and mathematical physics, I've been advised that networking with fellow scientists is crucial for securing a good PhD position and building a successful career in the field. While I get along well with my postdoc supervisor, I'm interested in expanding my network and getting to know other scientists in the field.
For instance, I've been studying the dissertation of a former member of my current research group who is now a professor in another country. I'd like to connect with them, but I'm not sure how to reach out.
What are the best ways to broaden your network and make connections with other scientists in your field?
What is the best way to initiate contact and build a professional relationship with someone in your field?