7 citations · 10 across the 4 of their papers we have counts for
4 papers
Long-Distance Device-Independent Conference Key Agreement
Makoto Ishihara, Anders J. E. Bjerrum, Wojciech Roga +3
Device-independent quantum key distribution (DI-QKD) enables two remote parties to share an information-theoretically secure key without any assumptions on the inner workings of th…
Mapping of a many-qubit state onto an oscillator using controlled displacements
Anders J. E. Bjerrum, Ulrik L. Andersen, Peter Rabl
We extend the controlled displacement interaction between a qubit and a harmonic oscillator to the multi-qubit (qudit) case. We define discrete quadratures of the qudit and show ho…
Long Distance Nonlocality Test with Entanglement Swapping and Displacement-Based Measurements
Anders J. E. Bjerrum, Jonatan B. Brask, Jonas S. Neergaard-Nielsen +1
We analyze an all-optical setup which enables Bell-inequality violation over long distances by exploiting probabilistic entanglement swapping. The setup involves only two-mode sque…
Quantum Repeater using Two-Mode Squeezed States and Atomic Noiseless Amplifiers
Anders J. E. Bjerrum, Jonatan B. Brask, Jonas S. Neergaard-Nielsen +1
We perform a theoretical investigation into how a two-mode squeezed vacuum state, that has undergone photon loss, can be stored and purified using noiseless amplification with a co…