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Abstract
Quantum Key Distribution (QKD) provides a secure way of generating shared cryptographic keys between a sender (Alice) and a receiver (Bob). The original BB84 protocol uses a two-dimensional polarization basis, limiting the information content of a single photon to 1 bit. Using the transverse position of single photons as one basis and the Fourier space as a second basis, one can construct a pair of mutually unbiased higher-dimensional bases. This improves not only the security of the protocol, but also the key generation rate. We present experimental results with a Spatial-Light-Modulator-based encoding scheme employing two nearly orthogonal alphabets with on the order of 103 symbols each and an information content of about 10 bit.
Original language | English |
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Title of host publication | 2017 16th Workshop on Information Optics (WIO) |
Place of Publication | 2017 |
Publisher | IEEE |
Pages | 1-3 |
Number of pages | 3 |
DOIs | |
Publication status | Published - 18 Sept 2017 |
Event | Workshop on Information optics (WIO) 2017 - Duration: 3 Jul 2017 → 7 Jul 2017 http://wio2017.epfl.ch |
Conference
Conference | Workshop on Information optics (WIO) 2017 |
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Abbreviated title | WIO |
Period | 3/07/17 → 7/07/17 |
Internet address |
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Dive into the research topics of 'Two High-Dimensional Cartesian Bases for Quantum Key Distribution'. Together they form a unique fingerprint.Activities
- 1 Invited talk
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Quantum Key Distribution with a High Number of Spatial Degrees of Freedom
Pinkse, P. (Speaker)
5 Jul 2017Activity: Talk or presentation › Invited talk