Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bures measure of entanglement of an arbitrary state of two qubits   In Phys. Rev. Lett. 80, 2245 (1998) an explicit expression for entanglement
of formation for any two qubit state was given. Based on this result we present
an expression for the Bures measure of entanglement for two qubit states. This
measure was proposed in Phys. Rev. A 57, 1619 (1998), where the authors showed
that it satisfies all properties every entanglement measure must have.

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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: chem-ph
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The categories of this paper are: math
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The categories of this paper are: cond-mat
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The categories of this paper are: physics
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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: patt-sol