Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-qubit quantum computing using discrete-time quantum walks on
  closed graphs   Universal quantum computation can be realised using both continuous-time and
discrete-time quantum walks. We present a version based on single particle
discrete-time quantum walk to realize multi-qubit computation tasks. The
scalability of the scheme is demonstrated by using a set of walk operations on
a closed lattice form to implement the universal set of quantum gates on
multi-qubit system. We also present a set of experimentally realizable walk
operations that can implement Grover's algorithm, quantum Fourier
transformation and quantum phase estimation algorithms. An elementary
implementation of error detection and correction is also presented. Analysis of
space and time complexity of the scheme highlights the advantages of quantum
walk based model for quantum computation on systems where implementation of
quantum walk evolution operations is an inherent feature of the system.

14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin