Physics, Applied Physics & Astronomy

Experimental—Particle Astrophysics

The nature and structure of matter and energy remains one of mankind’s leading research frontiers. The faculty members involved in this area are engaged in experimental and theoretical studies of the fundamental interactions of matter at sub-femtometer distances. Another research focus is on the direct detection of dark matter with the XENON100 and XENON1T experiments operated in the LNGS laboratory in Italy. Research & development efforts for these and future dark matter experiments addresses xenon purification techniques to operate the most radiopure detectors in the world.


Experimental research in the astrophysics group focuses on near-field cosmology, in which local galaxies are studied as examples to understand the properties of the Universe, including dark matter and dark energy. We particularly focus on the dynamics and structure of the Milky Way as revealed by large, international photometric and spectroscopic surveys such as the Sloan Digital Sky Survey (SDSS) and the Large Area Multi-Object Spectroscopic Telescope (LAMOST), and by astrometric surveys such as Gaia. Dwarf galaxies are ripped apart by tidal forces in the Milky Way into tidal streams.

Experimental—Condensed Matter Physics

The experimental condensed matter research distinguishes between the bulk of matter, its surface and interface, and proceeds in close partnership with theory and computational studies. Of interest are new concepts, materials, and techniques for nanotechnology and green technology such as renewable energy, energy conservation and conversion, storage, and delivery. Some projects are interdisciplinary and take part in dedicated Centers across the Institute.

Theoretical—Stochastic Dynamics on Complex Networks

One of the major developments of the last two decades has been the ever-increasing interconnectivity of a broad class of information networks, including physical and data network types arising in telecommunication, social networks, and transportation and energy infrastructures. This interconnectivity has led to immense temporal and spatial complexity in modern networks and a critical need for basic mathematical theory and statistical modeling of complex interacting networks.

Theoretical—Particle Physics

Activities in this area primarily focus on investigations on beyond the standard model applications of lattice field theory. This includes strongly coupled supersymmetric systems such as arise in hidden sector models of spontaneous supersymmetry breaking. We have also studied models of compositeness in the Higgs sector of the Standard Model, with electroweak symmetry broken by strong dynamics of a new gauge force. This has led us into developing software for the study of resonance properties from first principles, which is also useful for lattice quantum chromodynamics.


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