Question: Csaba Csáki studied under a theoretical physicist that is a Professor of Science at what university?
Context: John Clements Collins (born 1949) is a British-born American theoretical physicist and professor of physics at Pennsylvania State University.  He attended the University of Cambridge where he obtained a B.A. in mathematics 1971 and a Ph.D. in theoretical physics in 1975.  He worked as a postdoc and assistant professor from 1975 to 1980 at Princeton University.  Collins was part of the faculty of the Illinois Institute of Technology from 1980 to 1990.  From 1990 to the present, he has been a faculty member in the department of physics at Pennsylvania State University where he currently holds the position of Distinguished Professor. Dmitri Dmitrievich Ivanenko (Ukrainian: Дмитро́ Дми́трович Іване́нко , Russian: Дми́трий Дми́триевич Иване́нко ) (July 29, 1904, Poltava, present-day Ukraine – December 30, 1994, Moscow) was a Soviet-Ukrainian theoretical physicist who made a great contributions to the physical science of the twentieth century, especially to nuclear physics, field theory, and gravitation theory.  He worked in the Poltava Gravimetric Observatory of the Institute of Geophysics of NAS of Ukraine, was the head of the Theoretical Department Ukrainian Physico-Technical Institute in Kharkiv, Head of the Department of Theoretical Physics of the Kharkiv Institute of Mechanical Engineering.  Professor of University of Kharkiv, Professor of Moscow State University (since 1943). Kyriakos Tamvakis (Greek: Κυριάκος Ταμβάκης ; born in 1950 ) is a Greek theoretical physicist and professor at the University of Ioannina.  Kyriakos Tamvakis studied at the University of Athens and gained his Ph.D. at Brown University, Providence, Rhode Island, USA in 1978.  His thesis title was "Induced Boson Selfcouplings In Four Fermion And Yukawa Theories".  Since then he has held several positions at CERN’s Theory Division in Geneva, Switzerland.  He has been Professor of Theoretical Physics at the University of Ioannina, Greece, since 1982.  Professor Tamvakis has published more than 100 articles on theoretical high-energy physics in various journals and has written two textbooks in Greek, on quantum mechanics and on classical electrodynamics. David Lindley (born 1956) is a theoretical physicist and author.  He holds a B.A. in theoretical physics from Cambridge University (1975 – 1978) and a PhD in astrophysics from the University of Sussex (1978 – 1981).  Then he was a postdoctoral researcher at Cambridge University.  From 1983 to 1986, he was a Research Fellow in the Theoretical Astrophysics Group at the Fermi National Accelerator Laboratory.  He then served as Technical Editor and Writer with the Central Design Group for the Superconducting Supercollider at the Lawrence Berkeley Laboratory in Berkeley, California.  He was an Associate Editor at "Nature" (1987 – 1993), a Senior Editor of "Science" (1994 – 1995), and an Associate Editor of "Science News" (1996 – 2000).  Since 2000, he is a freelance science writer and consultant. Helen Sarah Freedhoff (January 9, 1940 – June 10, 2017) was a Canadian theoretical physicist who studied the interaction of light with atoms.  She gained her doctorate at the University of Toronto in 1965 and completed a postdoctoral fellowship at Imperial College in London.  Freedhoff was the first woman appointed as a physics professor at York University in Toronto, and is believed to have been the only woman professor of theoretical physics in Canada at the time. Jameel Sadik "Jim" Al-Khalili OBE (Arabic: جميل صادق الخليلي‎ ‎ ; born 20 September 1962) is a British Iraqi theoretical physicist, author and broadcaster.  He is currently Professor of Theoretical Physics and Chair in the Public Engagement in Science at the University of Surrey.  He has presented a number of science programmes on BBC television and is a frequent commentator about science in other British media. Csaba Csáki is a theoretical physicist who studied under Lisa Randall.  He is known for his work in models of extra dimensions and supersymmetry.  He is currently a professor at Cornell University. Alex Kamenev is a theoretical physicist, at the William I Fine Theoretical Physics Institute, University of Minnesota, specializing in condensed matter.  Kamenev's current research focuses on theoretical condensed matter physics, disordered systems and glasses, field-theoretical treatment of many-body systems, mesoscopic systems, out of equilibrium systems.  Kamenev earned his M.Sci.  degree theoretical physics, in 1987 from Moscow State University and a Ph.D. in solid-state physics, in 1996 from Weizmann Institute of Science in Israel. Lisa Randall (born June 18, 1962) is an American theoretical physicist working in particle physics and cosmology.  She is the Frank B. Baird, Jr.  Professor of Science on the physics faculty of Harvard University.  Her research includes elementary particles, fundamental forces and extra dimensions of space.  She studies the Standard Model, supersymmetry, possible solutions to the hierarchy problem concerning the relative weakness of gravity, cosmology of extra dimensions, baryogenesis, cosmological inflation, and dark matter.  She contributed to the Randall–Sundrum model, first published in 1999 with Raman Sundrum. David Jonathan Gross ( ; born February 19, 1941) is an American theoretical physicist and string theorist.  Along with Frank Wilczek and David Politzer, he was awarded the 2004 Nobel Prize in Physics for their discovery of asymptotic freedom.  David Gross is the Chancellor’s Chair Professor of Theoretical Physics at the Kavli Institute for Theoretical Physics of the University of California, Santa Barbara, and was formerly the KITP director and holder of their Frederick W. Gluck Chair in Theoretical Physics .  He is also a faculty member in the UC Santa Barbara Physics Department and is currently affiliated with the Institute for Quantum Studies at Chapman University in California.  He is a foreign member of the Chinese Academy of Sciences.
Answer: Harvard University