TITLE:
Approximate Quantum State Sharings via Pair of Private Quantum Channels
AUTHORS:
Dong Pyo Chi, Kabgyun Jeong
KEYWORDS:
Quantum State Sharing; (Approximate) Private Quantum Channel; Trace Norm
JOURNAL NAME:
Journal of Quantum Information Science,
Vol.4 No.1,
March
17,
2014
ABSTRACT: We investigate a quantum communication protocol, of
so-called approximate quantum state sharing (AQSS), that protocol is basically
based on pair of private quantum channels. In this paper, we prove that the
scheme is secure against any external and internal attacks of wiretapping in
principle. Although the protocol leaks small amount of information corresponding
to a security parameter , the scheme still preserves its information-theoretic
security.