A scheme for entanglement extraction from a solid

Author(s): Gabriele De Chiara, Caslav Brukner, Rosario Fazio, Massimo G Palma, Vlatko Vedral
Abstract: Some thermodynamical properties of solids, such as heat capacity and magnetic susceptibility, have recently been shown to be linked to the amount of entanglement in a solid. However, this entanglement may appear a mere mathematical artefact of the typical symmetrization procedure of many-body wavefunction in solid state physics. Here we show that this entanglement is physical, demonstrating the principles of its extraction from a typical solid-state system by scattering two particles off the system. Moreover, we show how to simulate this process using present day optical lattice technology. This demonstrates not only that entanglement exists in solids but also that it can be used for quantum information processing or as a test of Bell's inequalities. Œ IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Organisation(s)
External organisation(s): Scuola Normale Superiore di Pisa, University of Leeds
Journal: New Journal of Physics
Volume: 8
ISSN: 1367-2630
DOI: https://doi.org/10.1088/1367-2630/8/6/095
Publication date: 2006
Peer reviewed: Yes
Austrian Fields of Science 2012: 103026 Quantum optics
Portal url: https://ucrisportal.univie.ac.at/en/publications/a-scheme-for-entanglement-extraction-from-a-solid(fdc6bfed-6b29-4d73-ad8d-2afb3fe5e319).html