Next week's seminar

[CM ICTP - Trieste]

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



Thursday, 16 February    -    11:00 a.m.



Room 239,  Main Bldg.- II floor




S. CARR   ( The Abdus Salam International Centre for Theoretical 
Physics )




"Spinless fermionic ladders in a magnetic field: Phase diagram"


	Abstract

The system of interacting spinless fermions hopping on a two-leg ladder 
exhibits series of quantum phase transitions when subjected to external 
magnetic field.  At half filling, these are either U(1) Gaussian phase 
transitions between two phases with distinct types of long-range order 
or Berezinskii-Kosterlitz-Thouless transitions between ordered and 
gapless phases.
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