Other than a sabbatical year at the Department of Physics of Technion, the Israel Institute of Technology in Haifa from 1986, Freedhoff remained at York University until her retirement in 2005, having published over 40 research papers. She also collaborated with physicists in Australia, which led to Terry Rudolph undertaking his doctoral studies under Freedhoff's supervision in the 1990s. He is a professor of physics at Imperial College, and together with Matthew Pusey and Jonathan Barrett, one of the developers of the PBR theorem, an important development in quantum mechanics named for its three authors. Rudolph, who is Erwin Schrödinger 's grandson, delivered one of the eulogies at Freedhoff's funeral.