Where the Weyl Things Are

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Date/Time:Monday, 02 Oct 2017 from 4:10 pm to 5:00 pm
Location:Phys 0003
Phone:515-294-5441
Channel:College of Liberal Arts and Sciences
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Dr. Nandini Trivedi, Ohio State University

Abstract: In a material, the energy of an electron need not grow quadratically with its momentum, in fact an electron can behave like light, as in graphene. I will talk about unusual properties of Weyl semimetals that can be considered three-dimensional analogs of graphene. Their low energy excitations consist of linearly dispersing fermions that act as monopoles in momentum space in the bulk and chopped up Fermi arcs on the surface. I will show how these topological features lead to unusual heat and charge transport.

Bio: Nandini Trivedi got her undergraduate degree from the Indian Institute of Technology, Delhi and a PhD in physics in 1987 from Cornell University. After post-doctoral research at University of Illinois at Urbana-Champaign and State University of New York, Stony Brook, she joined Argonne National Laboratory as a staff scientist. In 1995, she joined the faculty of the Tata Institute of Fundamental Research, Mumbai. Since 2004, she has been a professor of physics at the Ohio State University.

Her research interests include the search for novel phenomena in quantum materials and ultra-cold atomic gases. She has developed quantum Monte Carlo and self-consistent mean field techniques to investigate these strongly correlated and disordered systems.