Future Physicist International Summer Camp 2023

Speaker & Supervisor

Prof. ZHOU Zong-quan

Title:     An introduction to quantum networks


Abstract:

I will introduce the research field of quantum networks which can enable long-distance quantum communication, distributed quantum computing and distributed quantum sensing. Due to the inevitable loss for photons during transmission, quantum memories are required for establishing the long-distance entanglement which is the fundamental resource for quantum networks. I will introduce the basic concepts, the roadmaps and the recent advances in this field.

Curriculum Vitae:

ZHOU Zong-quan is an associate professor in CAS key lab of quantum information at USTC. He leads the group working on solid-state quantum memories based on rare-earth-ion-doped crystals. He proposed a quantum memory protocol named as noiseless photon echo [Nature Communications 12, 4378 (2021)] which solves the long-standing problem of noise in photon echoes. Important experimental results include the longest optical storage time of 1 hour [Nature Communications 12, 2381 (2021)] and the first multiplexed quantum repeater based on absorptive quantum memories [Nature 594, 41 (2021)].

Prof. Zong-Quan Zhou, is known for his expertise in quantum memories and quantum networks. Today, he will give us a brief picture of memory-based quantum networks and the potential applications in quantum communication, quantum computation and quantum sensing.

Education:

Ph.D. in Physics   University of Science and Technology of China

06/2015

 

Employment:

University of Science and Technology of China      Professor in Department of Optics       

2022-Current

University of Science and Technology of China      Associate Professor in Department of Optics       

2018-2022

University of Science and Technology of China      Associate Research Fellow in Department of Optics       

2015-2018

Research Interests:

Quantum Memories and quantum repeaters

The growth and fabrication of rare-earth-ion doped single crystals;

Transportable quantum memories;

Quantum repeaters.

 

 

Selected recent publications (at USTC):

1.    D.-C. Liu, P.-Y. Li, T.-X. Zhu, L. Zheng, J.-Y. Huang, Z.-Q. Zhou*, C.-F. Li*, G.-C. Guo, On-Demand Storage of Photonic Qubits at Telecom Wavelengths. Phys. Rev. Lett. 129, 210501 (2022)

2.    Y. Ma, Y.-Z. Ma, Z.-Q. Zhou*, C.-F. Li*, G.-C. Guo, One-hour coherent optical storage in an atomic frequency comb memory. Nature Communications 12, 2381 (2021)

3.    X. Liu, J. Hu, Z.-F. Li, X. Li, P.-Y. Li, P.-J. Liang, Z.-Q. Zhou*, C.-F. Li*, G.-C. Guo, Heralded entanglement distribution between two absorptive quantum memories. Nature 594, 41 (2021) [Cover story]

 

4.    Y.-Z. Ma, M. Jin, D.-L. Chen, Z.-Q. Zhou*, C.-F. Li*, G.-C. Guo, Elimination of noise in optically rephased photon echoes. Nature Communications 12, 4378 (2021)