Quantum key distribution (QKD) protocols, processes which allow two parties to exchange a secret key by means of information encoded in qubits, are promising alternatives to classical cryptographic protocols. The security of these protocols can be analyzed using entropic uncertainty relations (EURs), which allow bounds to be placed on the amount of knowledge an eavesdropper can gain about the key by intercepting the qubits in transit. This report focuses on a generalization of the original EUR due to Maassen and Uffink by Berta et al. and explores its validity for several types of bipartite quantum states.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Washock, Ethan

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-121421-123959
• 43066

Keyword

• key distribution
• information theory
• cryptography
• quantum mechanics

Advisor

• Aravind, Padmanabhan K.
• Servatius, Herman

Year

• 2021

Date created

• 2021-12-14

Resource type

• Major Qualifying Project

Major

• Mathematical Sciences

Rights statement

• In Copyright