155 citations · 780 across the 11 of their papers we have counts for
8 papers · 1 filter
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…
First order phase transition in the anisotropic quantum orbital compass model
Roman Orus, Andrew C. Doherty, Guifre Vidal
We investigate the anisotropic quantum orbital compass model on an infinite square lattice by means of the infinite projected entangled-pair state algorithm. For varying values of…
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…
Quantum noise in a nano mechanical Duffing resonator
E. Babourina-Brooks, A. Doherty, G. J. Milburn
We determine the small signal gain and noise response of an amplifier based on the nonlinear response of a quantum nanomechanical resonator. The resonator is biased in the nonlinea…
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…