IISER Pune
INDIAN INSTITUTE OF SCIENCE EDUCATION AND RESEARCH (IISER) PUNE
where tomorrow’s science begins today
An Autonomous Institution, Ministry of Human Resource Development, Govt. of India
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Seminars and Colloquia

Physics

The Tenfold Way To Amorphous Topological Insulators  
 
Mon, Feb 05, 2018,   04:20 PM at Physics Seminar Room 31, 2nd Floor, Main Building

Prof. Vijay Shenoy
IISc., Bangalore


Abstract:

I shall review of the tenfold way of symmetry classification of fermionic systems, visiting the theory of topological insulators in crystalline systems leading to the "periodic table of topological insulators". I will then pose the question: Can amorphous systems host topological phases? I will present a theoretical argument to show that the answer to this question is in the affirmative. This will be followed by a discussion of lattice models that do indeed show topological phases in amorphous systems. I will briefly point out how this observation throws open the possibilities for realizing topological phases in a variety of systems from glassy materials to nano-engineered synthetic materials. (Work done in collaboration with Adhip Agarwala and Arijit Haldar). 

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