223 citations · 2k across the 56 of their papers we have counts for
56 papers
Information recycling in coherent state discrimination
L. F. Melo, János A. Bergou, Alexandre B. Tacla
The discrimination of coherent states is a crucial component in quantum communication with continuous variables, especially in quantum key distribution protocols (CV-QKD), which re…
Broadcasting single-qubit and multi-qubit-entangled states: authentication, cryptography, and distributed quantum computation
Hiroki Sukeno, Tzu-Chieh Wei, Mark Hillery +3
Quantum entanglement assisted with measurements provides various pathways to communicate information to parties within a network. In this work, we generalize a previous broadcastin…
Phase estimation with limited coherence
D. Munoz-Lahoz, J. Calsamiglia, J. A. Bergou +1
We investigate the ultimate precision limits for quantum phase estimation in terms of the coherence, , of the probe. For pure states, we give the minimum estimation variance att…
Broadcast of a restricted set of qubit and qutrit states
Mark Hillery, János A. Bergou, Tzu-Chieh Wei +2
The no-cloning theorem forbids the distribution of an unknown state to more than one receiver. However, if the sender knows the state, and the state is chosen from a restricted set…
Optimal linear optical discrimination of Bell-like states
Dov Fields, Janos A. Bergou, Mark Hillery +2
Quantum information processing using linear optics is challenging due to the limited set of deterministic operations achievable without using complicated resource-intensive methods…
Average concurrence and entanglement swapping
János A. Bergou, Dov Fields, Mark Hillery +2
We study the role of average concurrence in entanglement swapping in quantum networks. We begin with qubit pure states, and there is a very simple rule governing the propagation of…