Please use this identifier to cite or link to this item:
|Title:||Optimal detection of entanglement in Greenberger-Horne-Zeilinger states|
|Citation:||Kay, A. (2011-02-22). Optimal detection of entanglement in Greenberger-Horne-Zeilinger states. Physical Review A - Atomic, Molecular, and Optical Physics 83 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.83.020303|
|Abstract:||We present a broad class of N-qubit Greenberger-Horne-Zeilinger (GHZ)-diagonal states such that nonpositivity under the partial transpose operation is necessary and sufficient for the presence of entanglement, including many naturally arising instances such as dephased GHZ states. Furthermore, our proof directly leads to an entanglement witness which saturates this bound. The witness is applied to thermal GHZ states to prove that the entanglement can be extremely robust to system imperfections. © 2011 American Physical Society.|
|Source Title:||Physical Review A - Atomic, Molecular, and Optical Physics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Aug 10, 2018
WEB OF SCIENCETM
checked on Jul 16, 2018
checked on Jul 13, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.