Anyone ever consider the mathematical physics group at Oxford as alternative to DAMTP? (i.e. the department headed by Penrose in the actual maths building at oxford http://www2.maths.ox.ac.uk/mpg/people.shtml). There is no equivalent to part III to my knowledge and some of their research seems to overlap with DAMTP (indeed seems so members have later gone on to DAMTP from here); strings, Gen Rel etc with the added benefit of twistor stuff. I've never seen this group mentioned on these boards. Do physics undergrads go onto PhD's here, or is mathematicians only? The requirements say mathematics or related degree but I take that with a big pinch of salt.