CM Seminar

[ICTP info point]

JOINT ICTP/SISSA STATISTICAL PHYSICS SEMINAR

	

Tuesday, 6 March    -    12:30 hrs.



Seminar Room - ICTP Main Building   (first floor)

	


G. MUSSARDO   ( SISSA, Trieste )


" Off-critical statistical models in two dimensions "


Abstract

This seminar intends to present the main theoretical ideas behind the 
study of the statistical models in two dimensions,  such as 
universality, integrability or breaking thereof.   As example, we will 
make a thorough analysis of the class of universality of the Ising 
model: in particular we focus on the universal ratios of the 
Renormalization Group and on the spectrum of the excitations by varying 
the temperature or/and the magnetic field.

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Seminar on   Disorder and strong electron correlations





Thursday, 8 March   -    11:00 a.m.



Lecture Room 'C',  Main Bldg.- terrace level




A. SILVA   ( The Abdus Salam I.C.T.P. )


"Multiphoton processes in driven mesoscopic systems"

Abstract

In this seminar, I will describe the dynamics in energy space of a 
mesoscopic system, specifically a quasi-1d ring threaded by an harmonic 
time-dependent flux  Phi(t), focusing on the the statistics of 
multi-photon absorption/emission processes.  For this sake, I will 
demonstrate a useful mapping of the dynamics of the electrons 
distribution function into a Continuous Time Random Walk in energy 
space. Studying the probability to absorb/emit  n  quanta  per 
scattering event, we will explore the crossover between 
ultra-quantum/low-intensity limit and quasi-classical/high-intensity 
regime, and the role of multiphoton processes in driving it.  Finally, 
I will discuss the influence of quantum interference, and the role of 
system geometry in determining its effect.




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Ms. M. Poropat
Secretary
Condensed Matter & Statistical Physics Section
The Abdus Salam International
   Centre for Theoretical Physics
Strada Costiera 11
34014 Trieste
Italy

Telephone: +39-040-2240540
Telefax: +39-040-2240354 or 224163


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