Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.72.014301
Title: Multipartite entanglement in quantum spin chains
Authors: Bruß, D.
Datta, N.
Ekert, A. 
Kwek, L.C.
MacChiavello, C.
Issue Date: Jul-2005
Source: Bruß, D., Datta, N., Ekert, A., Kwek, L.C., MacChiavello, C. (2005-07). Multipartite entanglement in quantum spin chains. Physical Review A - Atomic, Molecular, and Optical Physics 72 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.72.014301
Abstract: We study the occurrence of multipartite entanglement in spin chains. We show that certain genuine multipartite entangled states, namely W states, can be obtained as ground states of simple XX type ferromagnetic spin chains in a transverse magnetic field, for any number of sites. Moreover, multipartite entanglement is proven to exist even at finite temperatures. A transition from a product state to a multipartite entangled state occurs when decreasing the magnetic field to a critical value. Adiabatic passage through this point can thus lead to the generation of multipartite entanglement. © 2005 The American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/97277
ISSN: 10502947
DOI: 10.1103/PhysRevA.72.014301
Appears in Collections:Staff Publications

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