14 citations · 28 across the 4 of their papers we have counts for
4 papers · 1 filter
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…
Quantum retrodiction made fully symmetric
Dov Fields, Abdelali Sajia, János A. Bergou
Quantum retrodiction is a time-symmetric approach to quantum mechanics with applications in a number of important problems. One of the major challenges to its more widespread appli…
Sequential measurements on qubits by multiple observers: Joint best guess strategy
Dov Fields, Árpad Várga, János A. Bergou
We study sequential state discrimination measurements performed on the same qubit by subsequent observers. Specifically, we focus on the case when the observers perform a kind of a…
Extracting unambiguous information from a single qubit by sequential observers
Dov Fields, Rui Han, Mark Hillery +1
In a recent paper [Phys. Rev. Lett. 111, 100501 (2013)], a scheme was proposed where subsequent observers can extract unambiguous information about the initial state of a qubit, wi…