230 citations · 1.2k across the 43 of their papers we have counts for
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Quantum retrodiction in open systems
David T. Pegg, Stephen M. Barnett, John Jeffers
Quantum retrodiction involves finding the probabilities for various preparation events given a measurement event. This theory has been studied for some time but mainly as an intere…
Retrodiction with two-level atoms: atomic previvals
John Jeffers, Stephen M. Barnett, David T. Pegg
In the Jaynes-Cummings model a two-level atom interacts with a single-mode electromagnetic field. Quantum mechanics predicts collapses and revivals in the probability that a measur…
Quantum theory of preparation and measurement
David T. Pegg, Stephen M. Barnett, John Jeffers
The conventional postulate for the probabilistic interpretation of quantum mechanics is asymmetric in preparation and measurement, making retrodiction reliant on inference by use o…
Retrodiction as a tool for micromaser field measurements
John Jeffers, Stephen M. Barnett, David T. Pegg
We use retrodictive quantum theory to describe cavity field measurements by successive atomic detections in the micromaser. We calculate the state of the micromaser cavity field pr…