I did an REU this summer at the university I go to and thanks G-d we got a lot more work done then expected. The REU was in Chaos theory, and we are waiting for the supercomputer to spit out some results and if the results are what as predicted we'll be able to write a paper in which I'll be first author. However, despite all of this success, I need to continue this research for another two semester for my senior project. I was thinking recruiting a chemistry or an engineering student of some kind to expand the scope of my research. Would it look better on a graduate school application for a PhD program in physics if my senior project expanded multiple fields rather then just solely physics?