Global quantum communication with satellite


Develop and finally build a world-wide quantum secure communication network on the basis of the established long distances free-space quantum communication platform between the ground and the satellite. As the quantum signal can be easily affected by the environment, we try to establish a quantum communication system that can overcome the noise from the daylight, so that it can run for the whole day besides in the night when the noise is low. Quantum communication experiment under the water is also carried out to expand the free-space-link to the water-link. To have a more stable quantum communication system, brighter quantum entanglement sources are explored. The fundamentals of quantum mechanics will be verified across large distances using the free-space quantum communication platform between the ground and the satellite.

Related Publications

  • Yin, J., Li, Y. -H., Liao, S. -K., Yang, M., Cao, Y., Zhang, L., Ren, J. -G., Cai, W. -Q., Liu, W. -Y., Li, S. -L., Shu, R., Huang, Y. -M., Deng, L., Li, L., Zhang, Q., Le Liu, N. -, Chen, Y. -A., Lu, C. -Y., Wang, X. -B., Xu, F., Wang, J. -Y., Peng, C. -Z., Ekert, A. & Pan, J. -W. Entanglement-based secure quantum cryptography over 1,120 kilometres. Nature (2020).
  • Cao, Y., Li, Y. -H., Zou, W. -J., Li, Z. -P., Shen, Q., Liao, S. -K., Ren, J. -G., Yin, J., Chen, Y. -A., Peng, C. -Z. & Pan, J. -W. Bell Test over Extremely High-Loss Channels: Towards Distributing Entangled Photon Pairs between Earth and the Moon. Physical Review Letters 120, 140405 (2018).
  • Gong, Y. -H., Yang, K. -X., Yong, H. -L., Guan, J. -Y., Shentu, G. -L., Liu, C., Li, F. -Z., Cao, Y., Yin, J., Liao, S. -K., Ren, J. -G., Zhang, Q., Peng, C. -Z. & Pan, J. -W. Free-space quantum key distribution in urban daylight with the SPGD algorithm control of a deformable mirror. Optics Express 26, 18897 (2018).
  • Zhang, Q., Xu, F., Chen, Y. -A., Peng, C. -Z. & Pan, J. -W. Large scale quantum key distribution: challenges and solutions [Invited]. Optics Express 26, 24260 (2018).
  • Han, X., Yong, H. -L., Xu, P., Wang, W. -Y., Yang, K. -X., Xue, H. -J., Cai, W. -Q., Ren, J. -G., Peng, C. -Z. & Pan, J. -W. Point-ahead demonstration of a transmitting antenna for satellite quantum communication. Optics Express 26, 17044 (2018).
  • Liao, S. -K., Cai, W. -Q., Handsteiner, J., Liu, B., Yin, J., Zhang, L., Rauch, D., Fink, M., Ren, J. -G., Liu, W. -Y., Li, Y., Shen, Q., Cao, Y., Li, F. -Z., Wang, J. -F., Huang, Y. -M., Deng, L., Xi, T., Ma, L., Hu, T., Li, L., Liu, N. -L., Koidl, F., Wang, P., Chen, Y. -A., Wang, X. -B., Steindorfer, M., Kirchner, G., Lu, C. -Y., Shu, R., Ursin, R., Scheidl, T., Peng, C. -Z., Wang, J. -Y., Zeilinger, A. & Pan, J. -W. Satellite-Relayed Intercontinental Quantum Network. Physical Review Letters 120, 030501 (2018).
  • Cao, Y., Li, Y. -H., Cao, Z., Yin, J., Chen, Y. -A., Yin, H. -L., Chen, T. -Y., Ma, X., Peng, C. -Z. & Pan, J. -W. Direct counterfactual communication via quantum Zeno effect. Proceedings of the National Academy of Sciences of the United States of America 114, 4920-4924 (2017).
  • Liu, W. -Y., Zhong, X. -F., Wu, T., Li, F. -Z., Jin, B., Tang, Y., Hu, H. -M., Li, Z. -P., Zhang, L., Cai, W. -Q., Liao, S. -K., Cao, Y. & Peng, C. -Z. Experimental free-space quantum key distribution with efficient error correction. Optics Express 25, 10716 (2017).
  • Ren, J. -G., Xu, P., Yong, H. -L., Zhang, L., Liao, S. -K., Yin, J., Liu, W. -Y., Cai, W. -Q., Yang, M., Li, L., Yang, K. -X., Han, X., Yao, Y. -Q., Li, J., Wu, H. -Y., Wan, S., Liu, L., Liu, D. -Q., Kuang, Y. -W., He, Z. -P., Shang, P., Guo, C., Zheng, R. -H., Tian, K., Zhu, Z. -C., Liu, N. -L., Lu, C. -Y., Shu, R., Chen, Y. -A., Peng, C. -Z., Wang, J. -Y. & Pan, J. -W. Ground-to-satellite quantum teleportation. Nature 549, 70–73 (2017).
  • Zou, W. -J., Li, Y. -H., Wang, S. -C., Cao, Y., Ren, J. -G., Yin, J., Peng, C. -Z., Wang, X. -B. & Pan, J. -W. Protecting entanglement from finite-temperature thermal noise via weak measurement and quantum measurement reversal. Physical Review A 95, 042342 (2017).