Audenaert, K., Eisert, J., Plenio, M. B. and Werner, R. F. (2002) Entanglement Properties of the Harmonic Chain. Physical Review A, 66
Full text access: Open
We study the entanglement properties of a closed chain of harmonic oscillators that are coupled via a translationally invariant Hamiltonian, where the coupling acts only on the position operators. We consider the ground state and thermal states of this system, which are Gaussian states. The entanglement properties of these states can be completely characterized analytically when one uses the logarithmic negativity as a measure of entanglement.
This is a Submitted version This version's date is: 6/5/2002 This item is not peer reviewed
https://repository.royalholloway.ac.uk/items/75e8421d-0ffd-71f0-b908-8533602b7634/2/
Deposited by Research Information System (atira) on 29-May-2012 in Royal Holloway Research Online.Last modified on 29-May-2012
15 pages, 14 figures, minor typos corrected