People in the Lab
The O'Hern group in the summer 2008: Carl Schreck, Michael Weiner, Corey O'Hern, Prasanta Pal, Guo-Jie Gao, and Gregg Lois from left to right.
Principal Investigator
Corey is an associate professor in the Departments of Mechanical Engineering and Physics at Yale. Before joining the faculty at Yale, he was a postdoctoral fellow working with Prof. Andrea Liu (UPenn, Physics) who was then at UCLA and Prof. Sidney Nagel (UChicago, Physics) on computational studies of jamming transitions in frictionless granular materials and glass transitions in model glass-forming liquids. Corey recieved his Ph.D. in Physics from the University of Pennsylvania in 1999; his dissertation focused on developing elasticity theories for liquid crystalline systems with biological importance such as DNA-cationic lipid complexes. See his Ph.D. thesis. Corey was an undergraduate at Duke University and graduated in 1994 with a B.S. in Physics. He likes to point out that while at Duke, he performed experimental research on granular materials in Bob Behringer's Lab and to his knowlege did not break anything! His CV is available here.
Postdocs
Gregg is a postdoctoral associate in the Mechanical Engineering and Physics Departments at Yale. He is interested in the properties of disordered and frustrated materials far from equilibrium. This includes systems studied in molecular biology, such as proteins, as well as physical materials such as glasses and gels. Before coming to Yale, Gregg received his Ph.D. in Physics from the University of California at Santa Barbara, where he studied granular flows with Jean Carlson. Here is his thesis . Follow this link to Gregg's website.
Graduate Students
Guo-Jie is a 4th year graduate student in Mechanical Engineering. He received his B.S. in physics from National Taiwan University (NTU) in 1999 and his M.S. from the Institute of Applied Mechanics at NTU in 2001. Guo-Jie is working on the Jamming in Granular Materials project. In particular, he is generating static granular packings using dissipative particle dynamics simulations and trying to understand why certain configurations are very frequent while others are orders of magnitude more rare. Guo-Jie will also investigate the effects of friction and construction history on static granular packings.
Prasanta is a 4th year graduate student in Applied Physics. He received his B.S. and M. S. degrees in physics from the Indian Institute of Technology in Kharagpur in 2002 and 2003, respectively. Prasanta is working on the Jamming in Quasi-One Dimensional and Confined Systems project. He is using both analytical and computational methods to understand slow dynamics in confined systems, for example quasi-1d systems in which particles do not switch order.
Carl is a third year graduate student in the Physics Department. He received his B.S. in physics from Bethel University (in Minnesota) in 2006. He is currently studying jamming in systems of anisotropic particles. In particular, he is using zero temperature and dissipative particle dynamics simulations on systems of ellipses to understand the effect of particle shape on the jamming transition.
Undergraduate Students
Michael is a Yale College sophomore in Silliman College originally from Atlanta. He is considering majoring in Physics, but has not yet decided. During the summer 2008, he worked on developing atomistic models of polypeptides, and was supported by an NSF-REU.
Former Students
Ph.D. Students
Ning Xu (Mechanical Engineering, 2005) Thesis: Computer Simulations of Athermal and Glassy Systems
Undergraduate Students
Ajay Shalwala (Chemical Engineering, Yale College 2005)
Erik Brown (Physics, Yale College 2006)
Phillippa Thomson (Mechanical Engineering, Yale College 2006)
Christopher Yerino (Physics, Yale College 2006)
Ian Rose (Physics, Yale College, 2009)
Rebecca Taft (Physics, Yale College, 2008)
Alix Witthoft (Physics, Mount Holyoke College, 2007)
Interested Students and Postdocs
The O'Hern group consists of students from the School of Engineering and Applied Sciences (from Applied Physics, Chemical Engineering, and Mechanical Engineering) as well as the Physics Department. Prof. O'Hern's joint appointments allow him to advise students from each of these departments. Undergraduate and graduate students and postdoctoral fellows interested in the research performed in the O'Hern lab are encouraged to contact Prof. O'Hern for more information. Applications for admission to the Graduate School are due the first week of January and can be filled out here. Postdoctoral fellowship applications are accepted year round and can be emailed to Prof. O'Hern.
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