13 citations · 24 across the 7 of their papers we have counts for
4 papers · 1 filter
Bounds on Petz-Rényi Divergences and their Applications for Device-Independent Cryptography
Thomas A. Hahn, Ernest Y. -Z. Tan, Peter Brown
Variational techniques have been recently developed to find tighter bounds on the von Neumann entropy in a completely device-independent (DI) setting. This, in turn, has led to sig…
Mutual information chain rules for security proofs robust against device imperfections
Amir Arqand, Tony Metger, Ernest Y. -Z. Tan
In this work we derive a number of chain rules for mutual information quantities, suitable for analyzing quantum cryptography with imperfect devices that leak additional informatio…
Finite-size analysis of prepare-and-measure and decoy-state QKD via entropy accumulation
Lars Kamin, Amir Arqand, Ian George +2
An important goal in quantum key distribution (QKD) is the task of providing a finite-size security proof without the assumption of collective attacks. For prepare-and-measure QKD,…
Generalized Rényi entropy accumulation theorem and generalized quantum probability estimation
Amir Arqand, Thomas A. Hahn, Ernest Y. -Z. Tan
The entropy accumulation theorem, and its subsequent generalized version, is a powerful tool in the security analysis of many device-dependent and device-independent cryptography p…