155 citations · 635 across the 9 of their papers we have counts for
5 papers · 2 filters
Symmetric extension in two-way quantum key distribution
Geir Ove Myhr, Joseph M. Renes, Andrew C. Doherty +1
We introduce symmetric extensions of bipartite quantum states as a tool for analyzing protocols that distill secret key from quantum correlations. Whether the correlations are comi…
Quantum Control via Geometry: An explicit example
Mile Gu, Andrew Doherty, Michael Nielsen
We explicitly compute the optimal cost for a class of example problems in geometric quantum control. These problems are defined by a Cartan decomposition of into orthogon…
A lower bound on the dimension of a quantum system given measured data
Stephanie Wehner, Matthias Christandl, Andrew C. Doherty
We imagine an experiment on an unknown quantum mechanical system in which the system is prepared in various ways and a range of measurements are performed. For each measurement M a…
The quantum moment problem and bounds on entangled multi-prover games
Andrew C. Doherty, Yeong-Cherng Liang, Ben Toner +1
We study the quantum moment problem: Given a conditional probability distribution together with some polynomial constraints, does there exist a quantum state rho and a collection o…
Identifying phases of quantum many-body systems that are universal for quantum computation
Andrew C. Doherty, Stephen D. Bartlett
Quantum computation can proceed solely through single-qubit measurements on an appropriate quantum state, such as the ground state of an interacting many-body system. We investigat…