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Quantum
Information and Computation
ISSN: 1533-7146
published since 2001
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Vol.12 No.11&12 November 2012 |
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Improved bounds on negativity of superpositions
(pp0983-0988)
Zhi-Hao
Ma, Zhi-Hua Chen, Shuai Han, Shao-Ming Fei, and Simone Severini
doi:
https://doi.org/10.26421/QIC12.11-12-6
Abstracts:
We consider an alternative formula for the negativity based on a simple
generalization of the concurrence. We use the formula to bound the
amount of entanglement in a superposition of two bipartite pure states
of arbitrary dimension. Various examples indicate that our bounds are
tighter than the previously known results.
Key words:
Superpositions, Pure states, Negativity |
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