Abstract
A quantum teleportation network involving multiple users is essential for future quantum internet.So far,controlled quantum teleportation has been demonstrated in a three-user network.However,versatile and controlled quantum teleporta-tion network involving more users is in demand,which satisfies different combinations of users for practical requirements.Here we propose a highly versatile and controlled teleportation network that can switch among various combinations of different users.We use a single continuous-variable six-partite Greenberger-Home-Zeilinger(GHZ)state to realize such a task by choosing the different measurement and feedback operations.The controlled teleportation network,which includes one sub-network,two sub-networks and three sub-networks,can be realized for different application of user combina-tions.Furthermore,the coherent feedback control(CFC)can manipulate and improve the teleportation performance.Our approach is flexible and scalable,and would provide a versatile platform for demonstrations of complex quantum commu-nication and quantum computing protocols.
基金项目
山西省自然科学基金(202203021221214)
国家自然科学基金(62122044)
国家自然科学基金(62135008)
国家自然科学基金(61925503)
国家自然科学基金(11904218)
国家自然科学基金(12004276)
国家自然科学基金(12147215)
国家自然科学基金(11834010)
Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi Province of China(2019L0092)
Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi Province of China(2020L0029)
Key Project of the National Key Research and Development Program of China(2022YFA1404500)
Program for the Innovative Talents of Higher Education Institutions of Shanxi Province of China()
Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi and the Fund for Shanxi"1331 Project"()
维普
万方数据