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Entanglement Theory Quantum Correlations
Recurrent construction of optimal entanglement witnesses for 2N qubit systems
arXiv
Authors: Justyna P. Zwolak, Dariusz Chruściński
Year
2013
Paper ID
31976
Status
Preprint
Abstract Read
~2 min
Abstract Words
83
Citations
N/A
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 new method of generalization of the Robertson map that naturally meshes with 2N qubit systems, i.e., its structure respects the 22N growth of the state space. We prove that for N>1 these witnesses are indecomposable and optimal. As a byproduct we provide a new family of PPT (Positive Partial Transpose) entangled states.
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- This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
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- 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).
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