Title: Particle partitioning entanglement in itinerant many-particle systems

Sasha Zozulya - April 06 2009

Abstract

For itinerant fermionic and bosonic systems, we study `particle
entanglement', defined as the entanglement between two subsets of
particles making up the system. We formulate the general structure of
particle entanglement in many-fermion ground states, analogous to the
`area law' for the more usually studied entanglement between spatial
regions. Basic properties of particle entanglement are uncovered by
considering relatively simple itinerant models.