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Proceedings Paper

Towards hyperentangled time-bin and polarization superdense teleportation in space
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Paper Abstract

Quantum communication networks based on fiber optics are restricted in length since efficient quantum repeaters are not yet available. A free-space channel between a satellite in orbit and Earth can circumvent this problem. We have constructed a system to demonstrate the feasibility of quantum communication between space and earth using photons hyperentangled in their polarization and time-bin degrees of freedom. With this system, we have implemented superdense teleportation (SDT) with a fidelity of 0.94±0.02. To increase the efficiency of SDT, we have developed an active, polarization-independent switch compatible with SDT. We characterized the performance of its switching efficiency. Finally, we have constructed a novel two-level interferometer for time-bin qubit creation and analysis in orbit, and bounded its stability.

Paper Details

Date Published: 19 September 2019
PDF: 9 pages
Proc. SPIE 11167, Quantum Technologies and Quantum Information Science V, 1116702 (19 September 2019); doi: 10.1117/12.2537081
Show Author Affiliations
Joseph C. Chapman, Univ. of Illinois (United States)
Ian Miller, LightMachinery Inc. (Canada)
Ian Call, Univ. of Ilinois (United States)
Leo Oshiro, Univ. of Illinois (United States)
Matthias Zajdela, Univ. of Illinois (United States)
Brooke Polak, Univ. of Ilinois (United States)
Paul G. Kwiat, Univ. of Illinois (United States)


Published in SPIE Proceedings Vol. 11167:
Quantum Technologies and Quantum Information Science V
Mark T. Gruneisen; Miloslav Dusek; Paul M. Alsing; John G. Rarity, Editor(s)

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