Experimental Demonstration of Quantum Low Probability of Intercept for Ultra-Secure Communication
Name
heyes-jeheyes-phd-eecs-2023-thesis.pdf
Description
Thesis PDF
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6.82 MB
Format
Adobe PDF
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ba23827964349986e5a04d60aaed7636
Author(s)
Heyes, Jane E.
Advisor(s)
Wong, Franco N.C.
Date Issued
September 2023
Publisher
Massachusetts Institute of Technology
Abstract
Secure communication systems utilize encryption with shared keys between the sender and receiver of the encrypted message. For added security, the encrypted message can be hidden within a significant amount of noise so that the eavesdropper could not even extract the actual encrypted message, let alone decrypt it. However, such a system, called low probability of intercept (LPI), also uses a shared key which is susceptible to security failure caused by key disclosure, just like encryption systems. A quantum version of LPI, or QLPI, operates entirely differently: the key for quantum low probability of intercept (QLPI) is transient and not shared, and its security is based on the quantum no-cloning theorem. In this work, we will present a tabletop proof-of-concept experiment to demonstrate QLPI, achieving errorfree secure communication at an internet-compatible rate of 0.5 Gbps over the equivalent of 50 km of telecom fibers.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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