Seminarium om teoretisk fysik - Sergej Moroz

Ising gauge theory coupled to quantum matter: Exotic phase transition and SPT order

Abstract

After an introduction in the field of lattice gauge theories, I will discuss two surprising phenomena emerging from the interplay of dynamical discrete Ising gauge fields and quantum matter. First, I will talk about an exotic two-dimensional phase transition between the deconfined Dirac semimetal and the confined charge density wave. Second, I will explain how the Higgs phase, where matter condenses, exhibits symmetry-protected topological order. In the presence of an edge, this allows to distinguish sharply the confined and Higgs regimes.

Seminariet hålls i hybridform

Det går både att delta i seminariet på plats eller via Zoom.

Plats: PJ-salen, Institutionen för fysik, Kemigården 1, Göteborg
Zoom-länk: https://gu-se.zoom.us/j/64681043702

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Seminarium om teoretisk fysik