Towards hyperentangled time-bin and polarization superdense teleportation in space

Joseph C. Chapman; Ian Miller; Ian Call; Leo Oshiro; Matthias Zajdela; Brooke Polak; Paul G. Kwiat

doi:10.1117/12.2537081

19 September 2019 Towards hyperentangled time-bin and polarization superdense teleportation in space

Joseph C. Chapman, Ian Miller, Ian Call, Leo Oshiro, Matthias Zajdela, Brooke Polak, Paul G. Kwiat

Proceedings Volume 11167, Quantum Technologies and Quantum Information Science V; 1116702 (2019) https://doi.org/10.1117/12.2537081
Event: SPIE Security + Defence, 2019, Strasbourg, France

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.

Citation Download Citation

Joseph C. Chapman, Ian Miller, Ian Call, Leo Oshiro, Matthias Zajdela, Brooke Polak, and Paul G. Kwiat "Towards hyperentangled time-bin and polarization superdense teleportation in space", Proc. SPIE 11167, Quantum Technologies and Quantum Information Science V, 1116702 (19 September 2019); https://doi.org/10.1117/12.2537081

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