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Ashvin Vishwanath (Harvard University, USA)
Date & Time
Fri, 06 May 2022, 15:30 to 17:00
Online and Madhava Lecture Hall

For decades, the classical order parameters framework of Landau-Wilson has dominated the discussion of condensed matter systems, with extensions to incorporate topological states of weakly interacting electrons. In this talk,  I will focus instead on new physics that arises from strong interactions and its interplay with topology. A unifying theme will be the emergence of gauge fields, which will be illustrated with two recent works. The first  describes a route to realizing  a long sought after phase - the Z2 quantum spin  liquid - in an array of  highly excited (Rydberg) atoms. Experimental progress towards this goal will also be briefly mentioned. Next, I will discuss new strategies to create quantum states including deconfined phases of non-Abelian gauge theories. Measurements play a key role in this proposal. Prospects for realizing these states in existing term quantum platforms will also be discussed. 

Zoom link:
Meeting ID: 844 5320 1189
Passcode: 555391