original question: Which Department in [Massachusetts Institute of Technology] is the subsidiary department of [MIT Center for Theoretical Physics]? 
answer: mit physics department
answer type: Department.
auxiliary information: The MIT Center for Theoretical Physics is a subdivision of MIT Laboratory for Nuclear Science and Department of Physics. The CTP is a unified research and teaching center focused on fundamental physics. CTP activities range from string theory and cosmology at the highest energies down through unification and beyond-the-standard-model physics, through the standard model, to QCD, hadrons, quark matter, and nuclei at the low energy scale. Members of the CTP are also currently working on quantum computation and on energy policy. The breadth and depth of research in nuclear, particle, string, and gravitational physics at the CTP makes it a unique environment for researchers in these fields. In addition to the 15 MIT faculty members working in the CTP, at any one time there are roughly a dozen postdoctoral fellows, and as many, or more, long-term visitors working at the postdoctoral or faculty level. The CTP supports 25-35 MIT graduate students, who work with the faculty and postdocs on problems across the energy spectrum.Massachusetts Institute of Technology:;Type: College/University. ;
The [MIT Center for Theoretical Physics] is related to a subsidiary department within the [Massachusetts Institute of Technology]. What is this subsidiary department called?