Henry Tye

Horace White Professor of Physics

461 Physical Sciences Building
Cornell University
Ithaca NY 14853

personal website

B.S., 1970, California Institute of Technology. Ph.D., 1974, Physics, Massachusetts Institute of Technology. Research Associate, Stanford Linear Accelerator Center, 1974-77. Research Associate, Fermi National Accelerator Laboratory, 1977-78. Research Associate, Cornell University, 1978-80. Senior Research Associate, Cornell University, 1980-87. Professor, Physics, Cornell University, 1987-present. Horace White Professor of Physics, Cornell University, 2007 - present. Fellow, American Physical Society.

Research Areas
Particle theory; superstring theory; cosmology; brane world

Current Research
Elementary particle theory and the interface between cosmology and superstring theory. At the moment, the research is mainly focused on how the superstring theory describes nature. Specifically, the focus is on the recent brane world idea. In this picture, the standard model particles (such as the photon, the gluons, the electron and the quarks) live in the 3+1 dimensional brane while gravitons live in the higher dimensional bulk. Inflation takes place when extra branes are present. String theory properties lead to a robust brane inflationary scenario. Cosmic strings are produced towards the end of inflation, when the extra branes collide. Cosmological implications of this scenario are studied. To understand this scenario in the context of the cosmic landscape in string theory, the wavefunction of the universe and its properties are also studied. An inflationary scenario based on this picture is also proposed and studied. 

  • Spotlight

    Maxim Perelstein
    Finding the mechanism responsible for breaking electroweak symmetry is a current focus of Maxim Perelstein, assistant professor of physics. He also investigates topics in theoretical cosmology, particularly theoretical models for dark energy, dark... read more ||


    Matt Farrar is a graduate student working with Professor Chris Schaffer in the Biomedical Engineering Department to develop novel optical tools for studying neuropathologies of the brain and spinal cord.  “The ability to study the dynamics of... read more



    Tarek Anous, a formerundergraduate student, who worked at the Wilson Lab with Professor Rich Galik on instrumentation for the International Linear Collider (ILC). The ILC is a proposed next-generation particle accelerator with a target date of 2015 to begin operation. Tarek helped construct a small detector that uses cosmic rays in order to simulate the real detector that will be used in the ILC. Cosmic rays hit the scintillator (a plastic rod) and produce photons whose signals ... read more ||


    Dionysios Anninos was recently an undergraduate physics major at Cornell. "The range of possibilities offered at Cornell is overwhelming. One can end up studying the most disparate fields and end up well versed in them. Personally, I tried to exploit this feature to the maximum. I ended up learning a lot of great physics by sampling a large set of physics courses offered at a unique level, as well as exploring economics and mathematics." "Furthermore, through its advanced courses and research opportunities, Cornell offers the student a unique ... read more ||


    Wui Ip Professor Carl Franck and student Wui Ip (who is at Cornell as part of the NSF's Research Experiences for Undergraduates program) are studying how cells interact and signal each other to form complicated structures. For example, cells communicate when conditions are good, and they exchange growth factors. Franck and Ip are focusing on the question "Why do cells need company to grow?" It is well known that a minimum culture is needed to grow cells. What determines that ... read more ||


    Peter Wittich is an assistant professor in LEPP. He collaborates with assistant professor Julia Thom's research group. They are part of an international collaboration preparing the Compact Muon Solenoid (CMS) experiment that will operate at the Large Hadron Collider (LHC) scheduled to begin operation in 2007 in Geneva, Switzerland. Professor Wittich explains that "We're trying to understand fundamental questions such as 'What is the nature of space-time?' and 'Where does mass come from?' We do this by smashing protons together and looking at the very small particles that come out ... read more ||


    Heng Li is a graduate student working with professor Julia Thom's research group at LEPP. The group is part of an international collaboration preparing the Compact Muon Solenoid (CMS) experiment that will operate at the Large Hadron Collider (LHC) scheduled to begin... read more