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Title: Scalable engineering of multipartite W states in a spin chain
Authors: Balachandran, V.
Gong, J. 
Issue Date: 4-Jun-2012
Citation: Balachandran, V., Gong, J. (2012-06-04). Scalable engineering of multipartite W states in a spin chain. Physical Review A - Atomic, Molecular, and Optical Physics 85 (6) : -. ScholarBank@NUS Repository.
Abstract: We propose a scalable scheme for engineering multipartite entangled W states in a Heisenberg spin chain. The rather simple scheme is mainly built on the accumulative angular squeezing technique first proposed in the context of quantum kicked rotor for focusing a rotor to a delta-like angular distribution. We show how the efficient generation of various W states may be achieved by engineering the interaction between a spin chain (short or long) and a time-dependent parabolic magnetic field. Our results may further motivate the use of spin chains as a test bed to investigate complex properties of multipartite entangled states. We further numerically demonstrate that our scheme can be extended to engineer arbitrary spin chain quasimomentum states as well as their superposition states. © 2012 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
ISSN: 10502947
DOI: 10.1103/PhysRevA.85.062303
Appears in Collections:Staff Publications

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