Allen Zang

Quantum secret sharing in a triangular superconducting quantum network

  1. Haoxiong Yan,
  2. Allen Zang,
  3. Joel Grebel,
  4. Xuntao Wu,
  5. Ming-Han Chou,
  6. Gustav Andersson,
  7. Christopher R. Conner,
  8. Yash J. Joshi,
  9. Shiheng Li,
  10. Jacob M. Miller,
  11. Rhys G. Povey,
  12. Hong Qiao,
  13. Eric Chitambar,
  14. and Andrew N. Cleland
We present a three-node quantum communication testbed with a triangular topology, each side of the triangle formed by a 1.3-meter-long transmission line. We demonstrate state transfer
and entanglement generation between any two nodes, generate genuine multipartite entangled GHZ states, and implement quantum secret sharing (QSS) of classical information. Our experiments show that the QSS protocol can effectively detect eavesdropping, ensuring the secure sharing of secrets. This device forms a testbed for robust and secure quantum networking, enabling testing of more advanced quantum communication protocols.
arxiv pdf