CMSA Quantum Matter in Mathematics and Physics: The nu=5/2 enigma: Recent insights from theory and experiment


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July 29, 2021 10:30 am - 12:00 pm
via Zoom Video Conferencing

Ady Stern & David Mross - Weizmann

Non-Abelian phases of matter have long inspired quantum physicists across various disciplines. The strongest experimental evidence of such a phase arises in quantum Hall systems at the filling factor 5/2 but conflicts with decades of numerical works. We will briefly introduce the 5/2 plateau and explain some of the key obstacles to identifying its topological order. We will then describe recent experimental and theoretical progress, including a proposal for resolving the 5/2 enigma based on electrical conductance measurements.