132 citations · 202 across the 5 of their papers we have counts for
14 papers · 1 filter
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…
Experimental demonstration of entanglement-enhanced classical communication over a quantum channel with correlated noise
K. Banaszek, A. Dragan, W. Wasilewski +1
We present an experiment demonstrating entanglement-enhanced classical communication capacity of a quantum channel with correlated noise. The channel is modelled by a fiber optic l…
Photon engineering for quantum information processing
A. B. U'Ren, K. Banaszek, I. A. Walmsley
We study distinguishing information in the context of quantum interference involving more than one parametric downconversion (PDC) source and in the context of polarization-entangl…
Fidelity of Single Qubit Maps
M. D. Bowdrey, D. K. L. Oi, A. J. Short +2
We describe a simple way of characterizing the average fidelity between a unitary (or anti-unitary) operator and a general operation on a single qubit, which only involves calculat…
Fidelity of Single Qubit Maps
M. D. Bowdrey, D. K. L. Oi, A. J. Short +1
We give a simple way of characterising the average fidelity between a unitary and a general operation on a single qubit which only involves calculating the fidelities for a few pur…