128 citations · 201 across the 2 of their papers we have counts for
2 papers
quant-ph2006★ 73 cited
Single-Site Entanglement of Fermions at a Quantum Phase Transition
Daniel Larsson, Henrik Johannesson
We show that the single-site entanglement of a generic spin-1/2 fermionic lattice system can be used as a reliable marker of a finite-order quantum phase transition, given certain…
cond-mat.str-el2005★ 128 cited
Entanglement Scaling in the One-Dimensional Hubbard Model at Criticality
Daniel Larsson, Henrik Johannesson
We derive exact expressions for the local entanglement entropy E in the ground state of the one-dimensional Hubbard model at a quantum phase transition driven by a change in magnet…