383 citations · 1.1k across the 18 of their papers we have counts for
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Weak measurement takes a simple form for cumulants
Graeme Mitchison
A weak measurement on a system is made by coupling a pointer weakly to the system and then measuring the position of the pointer. If the initial wavefunction for the pointer is rea…
Sequential weak measurement
Graeme Mitchison, Richard Jozsa, Sandu Popescu
The notion of weak measurement provides a formalism for extracting information from a quantum system in the limit of vanishing disturbance to its state. Here we extend this formali…
A most compendious and facile quantum de Finetti theorem
Robert Koenig, Graeme Mitchison
In its most basic form, the finite quantum de Finetti theorem states that the reduced k-partite density operator of an n-partite symmetric state can be approximated by a convex com…
A dual de Finetti theorem
Graeme Mitchison
The quantum de Finetti theorem says that, given a symmetric state, the state obtained by tracing out some of its subsystems approximates a convex sum of power states. The more subs…