Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Quantum Algorithm for Finding Common Matches Between Databases with
  Reliable Behavior   Given $\kappa$ databases of unstructured entries, we propose a quantum
algorithm to find the common entries between those databases. The proposed
algorithm requires $\mathcal{O}(\kappa \sqrt{N})$ queries to find the common
entries, where $N$ is the number of records for each database. The proposed
algorithm constructs an oracle to mark common entries, and then uses a
variation of amplitude amplification technique with reliable behavior to
increase the success probability of finding them.

6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
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The categories of this paper are: hep-th
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The categories of this paper are: eess