Quantum Cryptography in Space
Scientists at Oak Ridge National Laboratory and University of Illinois have demonstrated the viability of quantum encryption as a means for securing communication in space.
The experiment, led by ORNL’s Joseph Chapman, simulated high-dimensional quantum cryptography over long distances between satellites in a space environment.
According to the press release, “Chapman’s team used light particles to create entangled pairs of qubits and qudits, meaning one particle from a pair couldn’t be described independently of the other. The team emulated transmission between a ground station and satellite and simulated transmission from orbiting satellites.”
An article describing the research “Hyperentangled, “Time-Bin and Polarization Quantum Key Distribution,” appears in the October 2022 edition of Physical Review Applied.
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