Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Negativity and strong monogamy of multi-party quantum entanglement
  beyond qubits   We propose the square of convex-roof extended negativity(SCREN) as a powerful
candidate to characterize strong monogamy of multi-party quantum entanglement.
We first provide a strong monogamy inequality of multi-party entanglement using
SCREN, and show that the tangle-based multi-qubit strong monogamy inequality
can be rephrased by SCREN. We further show that SCREN strong monogamy
inequality is still true for the counterexamples that violate tangle-based
strong monogamy inequality in higher-dimensional quantum systems rather than
qubits. We also analytically show that SCREN strong monogamy inequality is true
for a large class of multi-qudit states, a superposition of multi-qudit
generalized W-class states and vacuums. Thus SCREN is a good alternative to
characterize the strong monogamy of entanglement even in multi-qudit systems.

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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: math
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The categories of this paper are: cs
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: cond-mat
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn