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Composite Weyl semimetal as a parent state for three dimensional topologically ordered phases by Sagi, Eran; Stern, Ady; Mross, David F. is a scholarly article available to read on EtoBox.

What is Composite Weyl semimetal as a parent state for three dimensional topologically ordered phases about?

We introduce (3+1) dimensional models of short-range-interacting electrons that form a strongly correlated many-body state whose low-energy excitations are relativistic neutral fermions coupled to an emergent gauge field, $\text{QED}_{4}$. We discuss the properties of this critical state and its instabilities towards exotic phases such as a gapless `composite' Weyl semimetal and fully gapped topologically ordered phases that feature anyonic point-like as well as line-like excitations. These fractionalized phases describe electronic insulators. They may be further enriched by symmetries which results in the formation of non-trivial surface states.

Author

Sagi, Eran; Stern, Ady; Mross, David F.

Published

2018

Language

EN