Abstract
Quantum teleportation is widely applied as a key ingredient in quantum information science, and quantum network provides unique abilities for upscaling its applications. Polarization state of light is a vital degree of freedom with the advantages of remote transfer and direct light-atom interaction. To construct a multiuser quantum network, deterministic quantum teleportation of polarization state in more users' network remains challenging. Compared with photonic quantum state, the deterministic quantum teleportation network of polarization state is realized with a single set of continuous-variable entangled states. The key techniques include only one set of quadrature entangled network, single quadrature controller, and active polarization controller. Arbitrary polarization state is deterministically and controllably teleported in such a system involving four or three users. This system is deterministic and scalable with user number, which enables the potential application in deterministic metropolitan quantum network.
Published by the American Physical Society
2024
Funder
National Outstanding Youth Foundation of China
China National Funds for Distinguished Young Scientists
National Natural Science Foundation of China
National Key Research and Development Program of China
Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi
Innovative Talents of Higher Education Institutions of Shanxi
Publisher
American Physical Society (APS)