© 2018

Broad Bandwidth and High Dimensional Quantum Memory Based on Atomic Ensembles


  • Nominated as an outstanding Ph.D. thesis by the University of Science and Technology of China

  • Provides a brief introduction to quantum information and quantum memory

  • Elaborates on how to achieve quantum storage of high-dimensional entanglement

  • Demonstrates experiments on implementing Raman quantum memory of single photons and extends them to photonic entanglement


Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xxii
  2. Dong-Sheng Ding
    Pages 1-16
  3. Back Matter
    Pages 109-122

About this book


This thesis presents an experimental study of quantum memory based on cold atomic ensembles and discusses photonic entanglement. It mainly focuses on experimental research on storing orbital angular momentum, and introduces readers to methods for storing a single photon carried by an image or an entanglement of spatial modes. The thesis also discusses the storage of photonic entanglement using the Raman scheme as a step toward implementing high-bandwidth quantum memory.

The storage of photonic entanglement is central to achieving long-distance quantum communication based on quantum repeaters and scalable linear optical quantum computation. Addressing this key issue, the findings presented in the thesis are very promising with regard to future high-speed and high-capacity quantum communications.


Raman quantum memory Atomic ensemble Quantum entanglement Quantum tomography fidelity High-dimensional entanglement

Authors and affiliations

  1. 1.Optics and Optical EngineeringUniversity of Science and Technology of ChinaHefeiChina

About the authors

Dong-Sheng Ding received his B.Sc. in Physics from Anhui Normal University, China in 2006. He obtained his Ph.D. in optics from the Department of Optics and Optical Engineering of the University of Science and Technology of China in 2015. His major research project in the Prof. Bao-Sen Shi group is quantum memory based on cold atoms. Subsequently, he became an Associate Professor in the same group.

Bibliographic information