The Zero-Error Entanglement Cost is Highly Non-Additive

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Qiuling and I have recently posted a paper on the arXiv that studies the zero-error entanglement cost its regularized version for maximally correlated bipartite states. Using techniques from the resource theory of coherence, we show that it is possible to generate \(n\) copies of certain entangled states using the same amount of entanglement needed to generated just a single copy.