Hyperentanglement for quantum telecommunications

Nicholas A. Peters; Anjali Agarwal; Thomas E. Chapuran; Paul Toliver

doi:10.1117/12.2018895

29 May 2013 Hyperentanglement for quantum telecommunications

Nicholas A. Peters, Anjali Agarwal, Thomas E. Chapuran, Paul Toliver

Proceedings Volume 8727, Advanced Photon Counting Techniques VII; 872702 (2013) https://doi.org/10.1117/12.2018895
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

We describe how hyperentanglement may be used to give orders of magnitude throughput improvement over singly entangled photon pairs, for some applications. Next we demonstrate the first measurement of hyperentangled photon pairs, both of which are at telecom wavelengths, via simultaneous polarization tomography and time-bin interference measurements. Without cryogenic cooling of the nonlinear element, we measure polarization entanglement with tangle of 0.4 ± 0.2 and time bin entanglement with visibility of 83% ± 6%, both exceeding classical thresholds by approximately two standard deviations.

Citation Download Citation

Nicholas A. Peters, Anjali Agarwal, Thomas E. Chapuran, and Paul Toliver "Hyperentanglement for quantum telecommunications", Proc. SPIE 8727, Advanced Photon Counting Techniques VII, 872702 (29 May 2013); https://doi.org/10.1117/12.2018895

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