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 |
Abstract
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