2017/12/29 by Siddhant Singh, Singh, Siddhant, Shivang Srivastava +3
Computer Science · Mathematics · Physics and Astronomy · #FOS: Computer and information sciences #FOS: Physical sciences #Information Theory (cs.IT) #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #cs.IT #math.IT #quant-ph
paper · pdf · doi:10.48550/arxiv.1712.10219
First two authors have contributed equally to this work (shared first authorship)
arxiv created 2017/12/29 · openalex publication_date 2017/12/29 · arxiv updated 2018/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We propose a protocol for multipartite secret sharing of quantum information through an amplitude damping quantum channel. This network is, for example, of two organizations communicating with their own employees connected via classical channels locally. We consider a GHZ state distributed among four members in an asymmetric fashion where the members of a sub-party collaborate to decode the received information at their end. The target is to send two bits of information in one execution of the protocol. Firstly, we consider an ideal channel and observe that our protocol enables decoding of a secret 2-bit information with unit probability. This is accomplished by one of the senders by the use of a globally operated quantum teleportation operator. Secondly, we implement the same protocol in a realistic scenario under energy dissipation by the use of a parameterized amplitude damping channel with variable noise. This noise is associated with energy dissipation and hence, loss of probability to distinguish and decode the information at the receiving end. Finally, we make this task possible through an optimization algorithm. Various channel quality measures are also quantitatively ascertained.