Speaker
Mr
Mhlambululi Mafu
(Centre for Quantum Technology)
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Level for award<br> (Hons, MSc, <br> PhD)?
PhD
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
Yes
Abstract content <br> (Max 300 words)
A realistic quantum key distribution protocol necessarily runs with finite resources. This is in contrast to the existing quantum key distribution security proofs which are asymptotic, in the sense that they only work if certain parameters are exceedingly large as compared to practical realistic values. In this paper, we spell out the bounds and formalism to derive bounds on the secret key rates for the B92 protocol [Phys. Rev. Letter, 68. 3121 1992] which includes a preprocessing step. This is expressed as an optimization problem by using the recent results on the uncertainty relation and the smooth Renyi entropies.
Main supervisor (name and email)<br>and his / her institution
Prof Francesco Petruccione, petruccione@ukzn.ac.za, University of KwaZulu-Natal
Primary author
Mr
Mhlambululi Mafu
(Centre for Quantum Technology)
Co-authors
Prof.
Francesco Petruccione
(Centre for Quantum Technology, University of KwaZulu-Natal)
Mr
Kevin Garapo
(University of KwaZulu-Natal)
