Particle partitioning entanglement in itinerant many-particle systems

Details Particle partitioning entanglement in itinerant many-particle systems Particle partitioning entanglement in itinerant many-particle systems

2008-04-07

arxiv.org/abs/0804.0878v1

Phys. Rev. A 78, 042326 (2008)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevA.78.042326

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.

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