2018 BFY III Abstract Detail Page

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Abstract Title: A new photon lab: Mimicking Eve in quantum key distribution
Abstract: We have set up a table-top demonstration of quantum key distribution (QKD) with entangled photon pairs. Alice and Bob have two detectors each separated by polarization. In QKD, Eve intercepts the photon going toward Bob measuring it and resending a photon in the same state as she measured. That way, if Eve measures in a polarization basis that is not the same as Bob's, it will generate errors in the joint detection of Alice and Bob when they use the same basis. It is hard to detect and then resent a single photon. We mimic Eve's action by using optical elements that disturb (or not) the photon going towards Bob. This is done without absorption and re-emission of Bob's photon.
Abstract Type: Poster

Author/Organizer Information

Primary Contact: Enrique J. Galvez
Colgate University
13 Oak Drive
Hamilton, NY 13346-0000
Phone: 3152287205
and Co-Presenter(s)
Baibhav Sharma and Aayan Bista

Presentation Documents

Contributed Poster: Download the Contributed Poster