19 citations · 29 across the 2 of their papers we have counts for
3 papers
Estimating the expectation values of spin 1/2 observables with finite resources
Thomas Brougham, Erika Andersson
We examine the problem of estimating the expectation values of two observables when we have a finite number of copies of an unknown qubit state. Specifically we examine whether it…
Maximum observable correlation for a bipartite quantum system
Michael J. W. Hall, Erika Andersson, Thomas Brougham
The maximum observable correlation between the two components of a bipartite quantum system is a property of the joint density operator, and is achieved by making particular measur…
Cloning and Joint Measurements of Incompatible Components of Spin
Thomas Brougham, Erika Andersson, Stephen M. Barnett
A joint measurement of two observables is a {\it simultaneous} measurement of both quantities upon the {\it same} quantum system. When two quantum-mechanical observables do not com…