Journal
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION
Volume 4, Issue 3, Pages 563-571Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S021974990600202X
Keywords
multipaxtite entanglement; spin chains; XXZ model; defects
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We show how defects in a spin chain described by the XXZ model may be used to generate entangled states, such as Bell and W states, and how to maintain them with high fidelity. We also discuss, in the presence of several excitations, how the anisotropy of the system may be combined with defects to effectively assist in the creation of the desired states.
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