Improved bounds on negativity of superpositions
نویسندگان
چکیده
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.
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عنوان ژورنال:
- Quantum Information & Computation
دوره 12 شماره
صفحات -
تاریخ انتشار 2012