131 citations · 279 across the 7 of their papers we have counts for
7 papers
Systems of Imprimitivity for the Clifford Group
D. M. Appleby, Ingemar Bengtsson, Stephen Brierley +3
It is known that if the dimension is a perfect square the Clifford group can be represented by monomial matrices. Another way of expressing this result is to say that when the dime…
Properties of QBist State Spaces
D. M. Appleby, Asa Ericsson, Christopher A. Fuchs
Every quantum state can be represented as a probability distribution over the outcomes of an informationally complete measurement. But not all probability distributions correspond…
Effects of the -factor in semi-classical kinetic plasma theory
Gert Brodin, Mattias Marklund, Jens Zamanian +2
A kinetic theory for spin plasmas is put forward, generalizing those of previous authors. In the model, the ordinary phase space is extended to include the spin degrees of freedom.…
Mubs and Hadamards of Order Six
Ingemar Bengtsson, Wojciech Bruzda, Asa Ericsson +3
We report on a search for mutually unbiased bases (MUBs) in 6 dimensions. We find only triplets of MUBs, and thus do not come close to the theoretical upper bound 7. However, we po…
Geodesics and the best measurement for distinguishing quantum states
Asa Ericsson
From statistical distinguishability of probability distributions, one can define distinguishability of quantum states. A corresponding measurement to perform, optimal in a definite…
Mutually Unbiased Bases and The Complementarity Polytope
Ingemar Bengtsson, Asa Ericsson
A complete set of N+1 mutually unbiased bases (MUBs) forms a convex polytope in the N^2-1 dimensional space of NxN Hermitian matrices of unit trace. As a geometrical object such a…