Hi. can I ask some advice?

I'm interseted in areas such as...

- quantum information

- quantum computing

- information theory

- mathematical foundation of quantum mechanics

I want to do my post-graduate study in these areas, in mathematics major.

But I'm having some difficulties in finding who researchers are in those areas in the world.

I came across a few names in a prestigious institutes but I am wondering if i can be given somewhat more comprehensive list of researchers in those field..

Thanks.