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 2017-18/
Seminari A.A. 2017-2018
 
 
I Seminari si svolgono il martedì alle 14:30 nell'aula 311 del Dipartimento di Matematica (salvo diversa indicazione)
  
 
Relatore
Titolo
Data
  
 
 
Michele Correggi
Università "La Sapienza"
Quasi-classical limit for quantum particle-field systems
22 Maggio 2018
  
 
 
Serena Cenatiempo
GSSI L'Aquila
Bogoliubov theory in the Gross-Pitaevskii regime
15 Maggio 2018
  
 
Abstract
ritorna
Since 1947 Bogoliubov treatment of Bose-Einstein condensation for interacting bosons has represented the guide model to thinking about Bose gases. Remarkably, such a theory predicts a linear excitation spectrum (in sharp contrast with the quadratic dispersion of free particles) and provides expressions for the thermodynamic functions which are believed to be correct in the dilute limit. However, there are only a few cases where the predictions of Bogoliubov theory can be actually proved. In particular, one of the main mathematical issues is to recover the physical intuition that the parameter that should appear in the expressions of the physical quantities is the scattering length of the interaction. In this talk I will discuss how the predictions of Bogolibov theory can be rigoursly obtained in the case of systems of N interacting bosons trapped in a box with volume one and interacting through a weak, repulsive potential with scattering length 1/N (Gross-Pitaevskii regime). Joint work with C. Boccato, C. Brennecke and B. Schlein.
 
 
 
Margherita Disertori
University of Bonn
Supersymmetry and Ward identities
as a tool to study functional integrals
8 Maggio 2018
  
 
 
Vieri Mastropietro
Università di Milano
Bulk-Edge correspondence in interacting spin Hall insulators
17 Aprile 2018
  
 
 
Alfonso Sorrentino
Università Tor Vergata
On Birkhoff conjecture for convex billiards
12 Aprile 2018
(giovedì)
  
 
 
Martin Tassy
University of California
Variational principles for discrete maps
06 Febbraio 2018
  
 
 
Monia Capanna
Università dell'Aquila
Turing instability in a model with two interacting Ising lines
31 Gennaio 2018
(mercoledì ore 11:30 Aula 211)
  
 
 
Alexandre Efremov
École Polytechnique
Palaiseau
Renormalization in QFTs
30 Gennaio 2018
  
 
 
Yinon Spinka
Tel Aviv University
A condition for long-range order in discrete spin systems
26 Gennaio 2018
(venerdì)
  
 
 
Eric Ossami Endo
Universidade
de São Paulo
Ferromagnetic Spin models
with spatially dependent external fields
23 Gennaio 2018
  
 
 
N.J.B. Aza
Universidade
de São Paulo
On large deviation principles and lattice Fermion systems
22 Gennaio 2018
(lunedì ore 11:30)
  
 
 
Clément Erignoux
IMPA
Duality and macroscopic evolution
of nonequilibrium boundary-driven lattice gases
9 Gennaio 2018
  
 
 
Domenico Monaco
Università Roma Tre
Adiabatic currents for interacting electrons on a lattice
21 Novembre 2017
  
 
 
Eris Runa
Max Planck Institut
Exact periodic stripes for minimizers of a local/non-local
interaction functional in general dimension
14 Novembre 2017
  
 
 
Hugo Duminil-Copin
IHES
Sharpness of the phase transition via randomized algorithms
7 Novembre 2017
  
 
 
Fabio Toninelli
Université Lyon 1
Interface growth models in the Anisotropic KPZ class
17 Ottobre 2017
  
 
 
Suren Pogosian
Armenian Academy
of Sciences
Limiting cluster representation
04 Ottobre 2017
(mercoledì aula 211)