132 citations · 378 across the 7 of their papers we have counts for
7 papers
Adaptive quantum phase estimation can be better than non-adaptive
Noah Linden, Ronald de Wolf
Quantum phase estimation is one of the most important tools in quantum algorithms. It can be made non-adaptive (meaning all applications of the unitary happen simultaneously)…
Lightweight Detection of a Small Number of Large Errors in a Quantum Circuit
Noah Linden, Ronald de Wolf
Suppose we want to implement a unitary , for instance a circuit for some quantum algorithm. Suppose our actual implementation is a unitary , which we can only apply a…
Optimal Entanglement Generation from Quantum Operations
M. S. Leifer, L. Henderson, N. Linden
We consider how much entanglement can be produced by a non-local two-qubit unitary operation, - the entangling capacity of . For a single application of ,…
Continuous Time and Consistent Histories
C. J. Isham, N. Linden, K. Savvidou +1
We discuss the use of histories labelled by a continuous time in the approach to consistent-histories quantum theory in which propositions about the history of the system are repre…
Information-entropy and the space of decoherence functions in generalised quantum theory
C. J. Isham, N. Linden
In standard quantum theory, the ideas of information-entropy and of pure states are closely linked. States are represented by density matrices on a Hilbert space and the inform…
Continuous Histories and the History Group in Generalised Quantum Theory
CJ Isham, N Linden
We treat continuous histories within the histories approach to generalised quantum mechanics. The essential tool is the `history group': the analogue, within the generalised histor…
The Classification of Decoherence Functionals: An Analogue of Gleason's Theorem
Chris Isham, Noah Linden, Stefan Schreckenberg
Gell-Mann and Hartle have proposed a significant generalisation of quantum theory with a scheme whose basic ingredients are `histories' and decoherence functionals. Within this sch…