Talks at Nordita Programs [before October 2010]

Topological Entanglement in Fractional Quantum Hall Excitation Eigenstates (Quantum Matter in Low Dimensions)

by Zlakto PAPIC (Institute of Physics)

Europe/Stockholm
132:028

132:028

Description
Entanglement in topological ordered states has so far been investigated through the perspective of the ground-state wave function. By presenting entanglement spectra of the (quasihole) excitations of fractional quantum Hall states, I will show their typical structure in Abelian, as well as non- Abelian cases of the Read-Rezayi sequence, including the realistic Coulomb-interaction ground states that they are believed to describe. I will argue that the excitation wave functions contain sufficient information to identify the system's topological order.