Seminário con el prof. Prof. Dr. Horatiu Stefan Nastase – 16 de septiembre de 2016 – 10h15min
EL PROGRAMA DE POSGRADO EN FÍSICA invita a todos para lo seminario:
“Particle-vortex duality and applications to condensed matter”
Prof. Dr. Horatiu Stefan Nastase – IFT/USP
Resumen:
Dualities are powerful tools used for describing nonperturbative physics. In 2+1 dimensions, particle-vortex duality is less studied compared to 3+1 dimensional counterparts, but has important implications for condensed matter. I show how it can be defined at the level of the path integral, and how it can be generalized to a nonabelian situation. Particle-vortex duality fits into a web of interesting dualities in 2+1 dimensions, and I show how they can be used in the description of topological insulators and superconductors. When describing the Fractional Quantum Hall Effect, a new type of vortices appear, with delta function sources, that presumably should make it easier to relate them to particles.
Fecha: 16 de septiembre de 2016- (viernes) – Lugar: Sala 212 – Auditorio del Departamento de Física – Horário: 10h15min
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