Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum secret sharing between multi-party and multi-party without
  entanglement   We propose a quantum secret sharing protocol between multi-party ($m$ members
in group 1) and multi-party ($n$ members in group 2) using a sequence of single
photons. These single photons are used directly to encode classical information
in a quantum secret sharing process. In this protocol, all members in group 1
directly encode their respective keys on the states of single photons via
unitary operations, then the last one (the $m^{th}$ member of group 1) sends
$1/n$ of the resulting qubits to each of group 2. Thus the secret message
shared by all members of group 1 is shared by all members of group 2 in such a
way that no subset of each group is efficient to read the secret message, but
the entire set (not only group 1 but also group 2) is. We also show that it is
unconditionally secure. This protocol is feasible with present-day techniques.

5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ