Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-server Blind Quantum Computation Protocol With Limited Classical
  Communication Among Servers   A user who does not have a quantum computer but wants to perform quantum
computations may delegate his computation to a quantum cloud server. In order
that the delegation works, it must be assured that no evil server can obtain
any important information on the computation. The blind protocol was proposed
as a way for the user to protect his information from the unauthorized actions
of the server. Among the blind protocols proposed thus far, a protocol with two
servers sharing entanglement, while it does not require to a user any quantum
resource, does not allow the servers to communicate even after the computation.
In this paper, we propose a protocol, by extend this two-server protocol to
multiple servers, which remains secure even if some servers communicate with
each other after the computation. Dummy gates and a circuit modeled after
brickwork states play a crucial role in the new protocol.

4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an