Università degli Studi Roma Tre

          Seminari di Fisica Matematica

Dipartimento di Matematica
  

 

 
 
 
 
 
 
 

Home

Archivio

2018-2019
2017-2018
2016-2017
2015-2016
2014-2015
2013-2014
2012-2013
2011-2012
2010-2011
2009-2010
2008-2009
2007-2008
2006-2007
2005-2006
2004-2005
2003-2004
2002-2003
2001-2002
 2016-17/
Seminari A.A. 2016-2017
 
 
I Seminari si svolgono il martedì alle 14:30 nell'aula 311 del Dipartimento di Matematica (salvo diversa indicazione)
  
 
Relatore
Titolo
Data
  
 
 
Simone Murro
Looking at the quantum states
with the eyes of algebraic quantum field theory
03 Maggio 2017
(mercoledì ore 11:30)
  
 
 
Domenico Monaco
(De)localization in topological insulators:
a Wannier-function approach
02 Maggio 2017
  
 
Abstract
ritorna
In this talk I will describe how Wannier functions (WFs) provide a powerful tool to investigate localization and transport properties of 2D and 3D gapped periodic quantum systems, including Chern insulators, quantum Hall systems, and time-reversal symmetric (TRS) topological insulators. In the first part of the talk, I will present a "localization dichotomy" for Chern and quantum Hall insulators, stating that either there exist exponentially localized WFs (in which case the Hall conductivity vanishes), or any system of WFs yields a divergent second moment of the position operator; no intermediate regimes are allowed. The second part of the talk will instead be devoted to TRS topological insulators: I will discuss how their Z_2 invariants arise as topological obstructions to the existence of localized and time-reversal symmetric WFs, and how to construct the latter in the unobstructed case.
 
 
 
Omar Zanusso
Conformal field theories of gods
and renormalization group flows of men
27 Aprile 2017
(giovedì ore 11:30)
  
 
 
Markus lange
Renormalization Analysis for Degenerate Eigenvalues
24 Aprile 2017
(lunedì ore 11:30)
  
 
 
Francesco Delfino
Scaling properties
of three-dimensional Bose-Einstein condensed gases
12 Aprile 2017
(mercoledì ore 11:30)
  
 
 
Stefano Marchesani
Hydrodynamic limits, weak solutions and thermodynamics
10 Aprile 2017
(lunedì ore 10:00)
  
 
 
Martin Tassy
Variational principles for discrete maps
07 Aprile 2017
(venerdì ore 11:30)
  
 
 
Matteo Rizzi
The Allen-Cahn and the Cahn-Hilliard equation:
classification and construction of solutions
06 Aprile 2017
(giovedì ore 14:00)
  
 
 
Rafael Greenblatt
Singular behavior of the Lyapunov exponent
of a product of random 2x2 matrices
28 Marzo 2017
  
 
 
Spyros Sotiriadis
Università Roma Tre
Equilibration in one-dimensional quantum hydrodynamic systems
17 Febbraio 2017
(venerdì ore 10:00 Aula 211)
  
 
 
Livia Corsi
Georgia Tech
Periodic driving at high frequencies of an impurity in the isotropic XY chain
20 Dicembre 2016
  
 
 
Maurizio Fagotti
ENS - Paris
Transport in out-of-equilibrium spin chains:
exact profiles of charges and currents
25 Ottobre 2016
  
 
 
Paolo Milanesi
Université
Aix-Marseille
Metastabilità del modello di Ising stocastico
18 Ottobre 2016
(ore 16:00)
  
 
 
Alessandro Olgiati
SISSA
Trieste
Effective dynamics for multiple coupled Bose-Einstein condensates
27 Settembre 2016