Next week's CM seminar

[ICTP info point]

CONDENSED MATTER AND STATISTICAL PHYSICS SECTION
	
INFORMAL SEMINAR on  Disorder and strong electron correlations




Thursday, 9 March    -    11:00 a.m.



Room 239,  Main Bldg.- II floor




V. KRAVTSOV    ( The Abdus Salam International Centre for Theoretical 
Physics )



"T-duality in the supersymmetric theory of disordered quantum systems"


	Abstract

Two variants of supermatrix field theory are discussed that describe 
statistics of disordered quantum systems, e.g. random matrix 
Hamiltonians.  One of them (nonlinear supersymmetric sigma model) is 
suitable for description of disordered systems with delocalized 
eigenfunctions and strongly correlated spectral statistics (disordered 
metals), the other is convenient for systems with localized or 
quasi-localized eigenfunctions.  These two variants of theory are dual 
to each other but defined on the target space of supermatrices with 
different symmetry ("T-duality").  An implication of the symmetry 
difference for disordered one-dimensional single-and multi-channel 
systems is discussed.
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