59 citations · 61 across the 5 of their papers we have counts for
6 papers · 1 filter
Towards practical and fast Quantum Cryptography
Nicolas Gisin, Gregoire Ribordy, Hugo Zbinden +3
We present a new protocol for practical quantum cryptography, tailored for an implementation with weak coherent pulses. The key is obtained by a very simple time-of-arrival measure…
Superluminal hidden communication as the underlying mechanism for quantum correlations: constraining models
Valerio Scarani, Nicolas Gisin
Since Bell's theorem, it is known that quantum correlations cannot be described by local variables (LV) alone: if one does not want to abandon classical mechanisms for correlations…
Bell's inequalities detect efficient entanglement
Antonio Acin, Nicolas Gisin, Lluis Masanes +1
We review the status of Bell's inequalities in quantum information, stressing mainly the links with quantum key distribution and distillation of entanglement. We also prove that fo…
Classical and quantum: some mutual clarifications
Valerio Scarani
This paper presents two unconventional links between quantum and classical physics. The first link appears in the study of quantum cryptography. In the presence of a spy, the quant…
Security bounds in Quantum Cryptography using d-level systems
Antonio Acin, Nicolas Gisin, Valerio Scarani
We analyze the security of quantum cryptography schemes for -level systems using 2 or maximally conjugated bases, under individual eavesdropping attacks based on cloning m…
Quantum homogenization
M. Ziman, P. Stelmachovic, V. Buzek +3
We design a universal quantum homogenizer, which is a quantum machine that takes as an input a system qubit initially in the state and a set of N reservoir qubits initially pre…