165 citations · 658 across the 35 of their papers we have counts for
3 papers · 1 filter
How well can you know the edge of a quantum pyramid?
Berthold-Georg Englert, Jaroslav Řeháček
We consider a symmetric quantum communication scenario in which the signal states are edges of a quantum pyramid of arbitrary dimension and arbitrary shape, and all edge states are…
Quantum tomographic cryptography with Bell diagonal states: non-equivalence of classical and quantum distillation protocols
Dagomir Kaszlikowski, Jenn Yang Lim, D. K. L. Oi +3
We present a generalized tomographic quantum key distribution protocol in which the two parties share a Bell diagonal mixed state of two qubits. We show that if an eavesdropper per…
Quantum Cryptography: Security Criteria Reexamined
Dagomir Kaszlikowski, Ajay Gopinathan, Yeong Cherng Liang +2
We find that the generally accepted security criteria are flawed for a whole class of protocols for quantum cryptography. This is so because a standard assumption of the security a…