Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Monogamous nature of symmetric N-qubit states of the W-class:
  Concurrence and Negativity Tangle   Using Majorana representation of symmetric N-qubit pure states, we have
examined the monogamous nature of the family of states with two-distinct
spinors, the W-class of states. We have evaluated the N-concurrence tangle and
showed that all the states in this family have vanishing concurrence tangle.
The negativity tangle for the W-class of states is shown to be non-zero
illustrating the fact that concurrence tangle underestimates the residual
entanglement in a pure N-qubit state.

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The categories of this paper are: econ
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The categories of this paper are: hep-th
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The categories of this paper are: cs
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The categories of this paper are: plasm-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio