|
|||||
|
|
Fault tolerant three-party quantum secret sharing against collective noise |
|
| Authors: | Bin Gu Lili Mu Liuguan Ding Chengyi Zhang Chuanqi Li |
| Institution: | a College of Math and Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China b The Photonic Technology Lab, Nanjing University of Information Science and Technology, Nanjing 210044, China c Guangxi Normal University, Guilin 541004, China |
| Abstract: | We present two robust three-party quantum secret sharing protocols against two kinds of collective noise. Each logical qubit is made up of two physical qubits and is invariant under a collective noise. The two agents encode their message on each logical qubit with two unitary physical operations on two physical qubits. As each logical qubit received by each agent can carry two bits of information and the classical information exchanged is reduced largely, these protocols have a high intrinsic efficiency. Moreover, the boss Alice can read out her agents' information with two Bell-state measurements on each four-qubit system, not four-photon joint measurements. |
| Keywords: | Quantum communication Quantum secret sharing Fault tolerant Collective noise |
| 本文献已被 ScienceDirect 等数据库收录！ | |