Recurrent construction of optimal entanglement witnesses for 2N-qubit systems

Citeable URL: https://ir.library.oregonstate.edu/concern/articles/5138jg786

Descriptions

Attribute Name	Values
Creator	Zwolak, Justyna P. Chruściński, Dariusz
Abstract	We provide a recurrent construction of entanglement witnesses for a bipartite systems living in a Hilbert space corresponding to 2N qubits (N qubits in each subsystem). Our construction provides a method of generalization of the Robertson map that naturally meshes with 2N-qubit systems, i.e., its structure respects the 2[superscript 2N] growth of the state space. We prove that for N>1 these witnesses are indecomposable and optimal. As a byproduct we provide a family of PPT (Positive Partial Transpose) entangled states.
Resource Type	Article
DOI	https://doi.org/10.1103/PhysRevA.89.052314
Date Available	2014-06-13T18:14:52+00:00
Date Issued	2014-05-12
Citation	Zwolak, J. P., & Chruściński, D. (2014). Recurrent construction of optimal entanglement witnesses for 2N-qubit systems. Physical Review A, 89(5), 052314. doi:10.1103/PhysRevA.89.052314
Journal Title	Physical Review A
Journal Volume	89
Journal Issue/Number	5
Rights Statement	Copyright Not Evaluated
Funding Statement (additional comments about funding)	D.C. was partially supported by the National Science Centre project DEC-2011/03/B/ST2/00136.
Publisher	American Physical Society
Peer Reviewed	Yes
Language	English [eng]
Replaces	http://hdl.handle.net/1957/49001