Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Complete and Deterministic Bell State Measurement Using Nonlocal Spin
  Products   A simple protocol for complete and deterministic Bell state measurement is
proposed. It consists of measurements of nonlocal spin product operators with
the help of shared entanglement as an ancillary resource. The protocol realizes
not only nonlocal Bell state measurement between a pair of distant qubits but
also a complete Bell filter that transmits either one of the Bell states
indicated by the measurement outcome. These schemes will be useful in quantum
technologies where nonlocal Bell state measurement is indispensable.

36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
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The categories of this paper are: eess
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
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The categories of this paper are: q-alg
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The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
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The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph