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Event 

Title:
Colóquio: Statistical aspects in topological phase transitions
When:
18.06.2019 11.00 h
Where:
Auditório 201 - Niterói
Categoría:
Colóquios

Description

Colóquios do IF-UFF


Na próxima terça-feira 18/06, às 11:00, na sala de seminários 201,  teremos o colóquio ministrado pelo Prof. Dr. Wei Chen (PUC).O título e o resumo da apresentação seguem abaixo. Um lanche será  servido quinze minutos antes.Contamos com a presença de todos.Atenciosamente, A Comissão.

 

*****
PalestranteWei Chen (PUC)

Título: Statistical aspects in topological phase transitions

Resumo: Mathematically, the topology (number of holes) of any object in our daily life (chairs, tables, cups...) is given by the integration of the Gaussian curvature of its surface. In a similar manner, the integration of a certain curvature calculated from the quantum mechanical wave function of a solid determines the topology of the solid. I will demonstrate that at the topological phase transitions (when number of holes changes), the curvature generally diverges at certain momentum. Through this divergence, a number of aspects we are familiar with in statistical mechanics also manifest in topological phase transitions, including correlation function, critical exponents, scaling laws, universality class, and renormalization group, pointing to a unified picture for the topological phase transitions in any known solids.

Venue

Map
Grupo:
Auditório 201
Street:
Av. Litorânea
ZIP:
24210-346
City:
Niterói
State:
Rj
Country:
Country: br

Description

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