As an important quantum communication protocol,quantum teleportation has broad applications in quantum information science and technology.For the application,it is essential to enhance the ability of quantum teleporta...As an important quantum communication protocol,quantum teleportation has broad applications in quantum information science and technology.For the application,it is essential to enhance the ability of quantum teleportation by teleporting multiple quantum states simultaneously.Here,we experimentally demonstrate deterministic quantum teleportation of multiple sideband qumodes of coherent states,which corresponds to teleporting multiple quantum states simultaneously,with the assistance of continuous-variable(CV)quantum entanglement.By fine-tuning the phases of two classical channels according to different adjustable frequencies,we successfully realize deterministic CV quantum teleportation with up to 5 sideband qumodes simultaneously within the frequency bandwidth of 24 MHz.We show that the number of teleported multiple qumodes is controllable by changing the phases of two classical channels.The obtained fidelities of output multiple qumodes are around 70%,which are all beyond the non-cloning limit.The results present a novel method for quantum teleportation of multiple quantum states simultaneously and take a crucial step in enhancing the teleporting ability of quantum teleportation.展开更多
The preparation of multipartite entangled states is the prerequisite for exploring quantum information networks and quantum computation.In this paper,we review the experimental progress in the preparation of cluster s...The preparation of multipartite entangled states is the prerequisite for exploring quantum information networks and quantum computation.In this paper,we review the experimental progress in the preparation of cluster states and multi-color entangled states with continuous variables.The preparation of lager scale multipartite entangled state provide valuable quantum resources to implement more complex quantum informational tasks.展开更多
基金supported by the Quantum Science and Technology-National Science and Technology Major Project(2024ZD0302403)the National Natural Science Foundation of China(12434015 and 62275145)+1 种基金the Fundamental Research Program of Shanxi Province(202403021224001)the Fund for Shanxi“331 Project”Key Subjects Construction.
文摘As an important quantum communication protocol,quantum teleportation has broad applications in quantum information science and technology.For the application,it is essential to enhance the ability of quantum teleportation by teleporting multiple quantum states simultaneously.Here,we experimentally demonstrate deterministic quantum teleportation of multiple sideband qumodes of coherent states,which corresponds to teleporting multiple quantum states simultaneously,with the assistance of continuous-variable(CV)quantum entanglement.By fine-tuning the phases of two classical channels according to different adjustable frequencies,we successfully realize deterministic CV quantum teleportation with up to 5 sideband qumodes simultaneously within the frequency bandwidth of 24 MHz.We show that the number of teleported multiple qumodes is controllable by changing the phases of two classical channels.The obtained fidelities of output multiple qumodes are around 70%,which are all beyond the non-cloning limit.The results present a novel method for quantum teleportation of multiple quantum states simultaneously and take a crucial step in enhancing the teleporting ability of quantum teleportation.
基金supported by the National Basic Research Program of China(Grant No.2010CB923103)the National Natural Science Foundation of China(Grant Nos.11322440,11074157,11174188 and 61121064)OIT and Shanxi Scholarship Council of China(Grant No.2012-010)
文摘The preparation of multipartite entangled states is the prerequisite for exploring quantum information networks and quantum computation.In this paper,we review the experimental progress in the preparation of cluster states and multi-color entangled states with continuous variables.The preparation of lager scale multipartite entangled state provide valuable quantum resources to implement more complex quantum informational tasks.
