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I am a theoretical condensed
matter physicist with a broad interest in quantum many-body 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. Such topological phenomena might provide the basis 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 understanding new quantum
mechanical many-body phenomena. I am primarily interested in searching for
manifestations of these beautiful ideas in 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. Potential candidates for topological superconductors
that could support Majorana fermions and are being studied in on-going experiments provide examples of
phases with similarly protected degeneracy. This creates 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 am also interested in the search for quantum many-body phenomena
in other systems where topological principles such as Weyl systems and
spin-orbit coupled Bose gases as well as Josephson junction arrays.

Tamoghna Barik

Graduate Student

tamoghna@umd.edu

4404 Atlantic
Building

Yi-Hua Lai

Graduate Student

laiyihua@umd.edu

4404 Atlantic
Building

Huan-Kuang Wu

Graduate Student

hkwu6013@terpmail.umd.edu

4404 Atlantic
Building

Shuyang Wang

Graduate Student

sywang95@umd.edu

4404 Atlantic
Building

Jay
Deep Sau Receives National Science Foundation CAREER
Award

Office: 4441 Atlantic Building

Department of Physics

University of Maryland

College Park, MD 20742-4111

United States of America

Telephone: +1 301-405-6116

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