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Condensed Matter and Statistical Physics Journal Club

Talk Details

Title On reduced density matrices for disjoint subsystems
Speaker Prof. Deepak Dhar
Date Wed, 18 May 2011
Time 14:30
Venue A 304


The authors show that spin and fermion representations for solvable quantum chains lead in general to different reduced density matrices if the subsystem is not singly connected. They study the effect for two sites in XX and XY chains as well as for sublattices in XX and transverse Ising chains.

Reference: F. Igloi and I. Peschel, 2010 EPL 89 40001