160 citations · 242 across the 4 of their papers we have counts for
4 papers · 1 filter
Entanglement in an expanding spacetime
J. L. Ball, I. Fuentes-Schuller, F. P. Schuller
We show that a dynamical spacetime generates entanglement between modes of a quantum field. Conversely, the entanglement encodes information concerning the underlying spacetime str…
Decoherence-free subspaces and subsystems for a collectively depolarizing bosonic channel
Jonathan L. Ball, Konrad Banaszek
We discuss the structure of decoherence-free subsystems for a bosonic channel affected by collective depolarization. A single use of the channel is defined as a transmission of a p…
Characterization of the non-classical nature of conditionally prepared single photons
Alfred B. U'Ren, Christine Silberhorn, Jonathan L. Ball +2
A reliable single photon source is a prerequisite for linear optical quantum computation and for secure quantum key distribution. A criterion yielding a conclusive test of the sing…
Storing Images in Entangled Quantum Systems
S. E. Venegas-Andraca, J. L. Ball
We introduce a new method of storing visual information in Quantum Mechanical systems which has certain advantages over more restricted classical memory devices. To do this we empl…