Particles and Quantum Field Theory


 

Quantum Field Theory (QFT) is the mathematical and conceptual framework for contemporary elementary particle physics. It is also a framework used in other areas of theoretical physics, such as condensed matter physics and statistical mechanics. In a rather informal sense QFT is the extension of quantum mechanics (QM), dealing with particles, over to fields, i.e. systems with an infinite number of degrees of freedom. QFT taken seriously in its metaphysical implications seems to give a picture of the world which is at variance with central classical conceptions of particles and fields, and even with some features of QM.
At present, this group has 4 full-time faculty members and 1 retired faculty member. This group deals with the study of nature and the universe at the most fundamental level. The most important questions at this level are: What the universe is made of and how it come into being, what the smallest dimension of the constituent parts of the world is, and what their interactions are. In a larger scale, what the whole world, and its transformation from the past to the present and the future has been. The answers to these questions are categorized in the form of high-energy physics, which includes particle physics, quantum field theory, gravity, cosmology, super-symmetric and super-gravity theories.
Our group works on diverse topics in theoretical high energy physics, including supersymmetric field theories, string theory and supergravity, solitons and instantons, general relativity, gauge-gravity duality, string theory, classical & quantum gravity, primordial cosmology, quantum field theory in a curved space time and gravitational waves.