504 citations · 7.2k across the 114 of their papers we have counts for
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Comment on "Proposal for the Measurement of Bell-Type Correlations from Continuous Variables"
K. Banaszek, I. A. Walmsley, K. Wodkiewicz
In a recent paper [T. C. Ralph, W. J. Munro, R. E. S. Polkinghorne, Phys. Rev. Lett. 85, 2035 (2000)], the authors propose a test for Bell's inequalities based on quadrature measur…
Homodyne Bell's inequalities for entangled mesoscopic superpositions
Andrzej Dragan, Konrad Banaszek
We present a scheme for demonstrating violation of Bell's inequalities using a spin-1/2 system entangled with a pair of classically distinguishable wave packets in a harmonic poten…
Information gain versus state disturbance for a single qubit
Konrad Banaszek
The trade-off between the information gain and the state disturbance is derived for quantum operations on a single qubit prepared in a uniformly distributed pure state. The derivat…
Fidelity balance in quantum operations
Konrad Banaszek
I derive a tight bound between the quality of estimating the state of a single copy of a -level system, and the degree the initial state has to be altered in course of this proc…
Optimal quantum teleportation with an arbitrary pure state
Konrad Banaszek
We derive the maximum fidelity attainable for teleportation using a shared pair of d-level systems in an arbitrary pure state. This derivation provides a complete set of necessary…