I am a theoretical condensed matter physicist with a broad interest in many particle physics relevant to experiments. At present, I am predominantly interested in applying topological principles to create protected solid-state and cold-atomic systems for quantum information processing.

Advances in experimental physics have pushed the design of materials and devices towards the regime of quantum many-body physics. At the same time conceptual advances at the boundary of theoretical condensed matter, quantum information and high-energy physics such as topological quantum field theories, entanglement entropy, holography and many-body localization all point to a new era of a better understanding of the subtleties of quantum many-body systems. While these theoretical concepts are often constructed out of an ideal set of rules motivated by reality – the application of these ideas to the real world often requires qualitative modification/augmentation of the ideas. I am primarily interested in understanding how these ideas can be related to phenomena in the real world. One such phenomenon, which is at the heart of topological quantum field theory, is topological degeneracy of quantum states. Such degeneracy is a macroscopic quantum phenomenon where two many-body quantum states of the system are at exactly the same energy in a way that is immune to external perturbations. This provides the potential of storing and manipulating quantum information in macroscopic states of quantum materials, and ultimately, of leading to platforms for topological quantum computation. I hope to be able to view topological quantum computation as a general approach to controlling and understanding systems with many degrees of freedom.

Research Group

Chunxiao Liu

cxliu@umd.edu

3101 John S. Toll Physics Building

301.405.6191

Amit Nag

anag@umd.edu

3101 John S. Toll Physics Building

301.405.6191

Yahya Alavirad

alavirad@umd.edu

0220 John S. Toll Physics Building

301.405.5969

Jay Deep Sau Receives National Science Foundation CAREER Award

Office: Physics Toll Building, Room 2308

Department of Physics

University of Maryland

College Park, MD 20742-4111

United States of America

Telephone: +1 301-405-8463

E-mail: jaydsau (at) umd (dot) edu

Department of Physics

University of Maryland

College Park, MD 20742-4111

United States of America

Telephone: +1 301-405-8463

E-mail: jaydsau (at) umd (dot) edu