Deterministic quantum state and gate teleportation between distant superconducting chips  

远距离超导芯片之间的确定性量子态和门隐形传态

作　　者：Jiawei Qiu Yang Liu Ling Hu Yukai Wu Jingjing Niu Libo Zhang Wenhui Huang Yuanzhen Chen Jian Li Song Liu Youpeng Zhong Luming Duan Dapeng Yu 邱嘉威;刘阳;胡玲;吴宇凯;牛晶晶;张礼博;黄文辉;陈远珍;李剑;刘松;钟有鹏;段路明;俞大鹏

机构地区：[1]Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China [2]International Quantum Academy,Shenzhen 518048,China [3]Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China [4]Center for Quantum Information,Institute for Interdisciplinary Information Sciences,Tsinghua University,Beijing 100084,China [5]Department of Physics,Southern University of Science and Technology,Shenzhen 518055,China

出　　处：《Science Bulletin》2025年第3期351-358,共8页科学通报(英文版)

基　　金：supported by the Key-Area Research and Development Program of Guangdong Province(2018B030326001);the National Natural Science Foundation of China(U1801661,12174178,12374471,12204228);the Guangdong Innovative and Entrepreneurial Research Team Program(2016ZT06D348);the Guangdong Provincial Key Laboratory(2019B121203002);the Science,Technology and Innovation Commission of Shenzhen Municipality(KYTDPT20181011104202253,KQTD20210811090049034,K21547502);the Shenzhen Science and Technology Program(RCYX20221008092907026);the Shenzhen-Hong Kong Cooperation Zone for Technology and Innovation(HZQB-KCZYB-2020050);the Natural Science Foundation of Beijing(Z190012);support from the Tsinghua University Initiative Scientific Research Program and the Ministry of Education of China.

摘　　要：Quantum teleportation is of both fundamental interest and great practical importance in quantum information science.To date,quantum teleportation has been implemented in various physical systems,among which superconducting qubits are of particular practical significance as they emerge as a leading system to realize large-scale quantum computation.Nevertheless,scaling up the number of superconducting qubits on a single chip becomes increasing challenging because of some emergent technical difficulties.Realization of quantum teleportation and remote computation over qubits on distant superconducting chips is a key quantum communication technology to scaling up the system through a distributed quantum computational network.However,this goal has not been realized yet in experiments due to the technical challenges including making a quantum interconnect between distant superconducting chips and the inefficient transfer of flying microwave photons over the lossy interconnects.Here we demonstrate deterministic teleportation of quantum states and entangling gates between distant superconducting chips connected by a 64-m-long cable bus featuring an ultralow loss of 0.32 dB/km at cryogenic temperatures,where high fidelity remote entanglement is generated via flying microwave photons.Our work demonstrates a prime building block for distributed quantum computation with superconducting qubits,and opens up a new avenue for waveguide quantum electrodynamics and quantum photonics at microwave frequencies.

关 键 词：Superconducting circuits Quantum network Quantum computing Flying microwave photon 

分 类 号：O413[理学—理论物理]