A hybrid quantum memory-enabled network at room temperature

Pang, Xiao-Ling1,2; Yang, Ai-Lin1,2; Dou, Jian-Peng1,2; Li, Hang1,2; Zhang, Chao-Ni1,2; Poem, Eilon3,4; Saunders, Dylan J.3; Tang, Hao1,2; Nunn, Joshua3,5; Walmsley, Ian A.3; Jin, Xian-Min1,2,6

2020

10.1126/sciadv.aax1425

Science Advances   影响因子和分区

23752548

Quantum memory capable of storage and retrieval of flying photons on demand is crucial for developing quantum information technologies. However, the devices needed for long-distance links are different from those envisioned for local processing. We present the first hybrid quantum memory-enabled network by demonstrating the interconnection and simultaneous operation of two types of quantum memory: an atomic ensemble-based memory and an all-optical Loop memory. Interfacing the quantum memories at room temperature, we observe a well-preserved quantum correlation and a violation of Cauchy-Schwarz inequality. Furthermore, we demonstrate the creation and storage of a fully-operable heralded photon chain state that can achieve memory-built-in combining, swapping, splitting, tuning, and chopping single photons in a chain temporally. Such a quantum network allows atomic excitations to be generated, stored, and converted to broadband photons, which are then transferred to the next node, stored, and faithfully retrieved, all at high speed and in a programmable fashion.
Copyright © 2020 The Authors, some rights reserved;

SCI ; EI

英语

NI论文

通讯

Shanghai Municipal Education Commission[2017-01-07-00-02- E00049] ; [2017YFA0303700] ; Science and Technology Commission of Shanghai Municipality[17JC1400403] ; National Natural Science Foundation of China[61734005]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000512902300008

American Association for the Advancement of Science

20200708149773

Quantum optics

Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4

Web of Science

1.Center for Integrated Quantum Information Technologies (IQIT), School of Physics and Astronomy, State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai; 200240, China
2.CAS Center for Excellence, Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei; 230026, China
3.Clarendon Laboratory, University of Oxford, Parks Road, Oxford; OX1 3PU, United Kingdom
4.Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot; 7610001, Israel
5.Centre for Photonics and Photonic Materials, Department of Physics, University of Bath, Claverton Down, Bath; BA2 7AY, United Kingdom
6.Institute for Quantum Science and Engineering, Department of Physics, Southern University of Science and Technology, Shenzhen; 518055, China

Pang, Xiao-Ling,Yang, Ai-Lin,Dou, Jian-Peng,et al. A hybrid quantum memory-enabled network at room temperature[J]. Science Advances,2020,6(6).

Pang, Xiao-Ling.,Yang, Ai-Lin.,Dou, Jian-Peng.,Li, Hang.,Zhang, Chao-Ni.,...&Jin, Xian-Min.(2020).A hybrid quantum memory–enabled network at room temperature.Science Advances,6(6).

Pang, Xiao-Ling,et al."A hybrid quantum memory–enabled network at room temperature".Science Advances 6.6(2020).