The notion of spontaneous symmetry breaking plays a vital role in modern condensed matter physics. However, an obvious aspect has often been overlooked: a symmetry can spontaneously break down to any of its subgroups. Each of these subgroups corresponds to phases with distinctive long range order. In this talk, I will attempt to give a perspective onto general O(3)-broken orders. These include conventional magnetic and Neel order and various nematic/multipolar orders. A lattice gauge theory is utilized. We will see how the latter can be used to classify their tensor order parameters and study the general property of the associated phase transitions.
PROFESSIONAL EXPERIENCE:
10/2016 -- Postdoctoral fellow, LMU Munich, Germany
EDUCATION:
2016 Ph.D., Theoretical Physics, Leiden University, The Netherlands, Supervisor: Prof. Jan Zaanen
RESEARCH FIELDS:
Theoretical condensed matter physics