Entanglement at the quantum phase transition in a harmonic lattice

The entanglement properties of phase transition in a twodimensional harmonic lattice, similar to the one observed in recent ion trap experiments, are discussed for both finite number of particles and thermodynamical limit. We show that for the ground state at the critical value of the trapping poten...

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Bibliographic Details
Main Authors: Rieper, E, Anders, J, Vedral, V
Format: Journal article
Language:English
Published: IOP Publishing 2010