Time-bin and Polarization Superdense Teleportation for Space Applications
Abstract
To build a global quantum communication network, low-transmission, fiber-based communication channels can be supplemented by using a free-space channel between a satellite and a ground station on Earth. We have constructed a system that generates hyperentangled photonic ''ququarts'' and measures them to execute multiple quantum communication protocols of interest. We have successfully executed and characterized superdense teleportation-our measurements show an average fidelity of 0.94+/-0.02, with a phase resolution under 7° allowing reliable transmission of >105 distinguishable quantum states. Additionally, we have demonstrated the ability to compensate for the Doppler shift, which would otherwise prevent sending time-bin encoded states from a rapidly moving satellite, thus allowing the low-error execution of phase-sensitive protocols during an orbital pass.
This work was primarily supported by NASA Grant No. NNX13AP35A and NASA Grant No. NNX16AM26G. This work was also supported by a DoD, Air Force Office of Scientific Research, National Defense Science and Engineering Graduate Fellowship (NDSEG).- Publication:
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APS March Meeting Abstracts
- Pub Date:
- 2019
- Bibcode:
- 2019APS..MARL28011C