126 citations · 151 across the 5 of their papers we have counts for
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An introduction to measurement based quantum computation
Richard Jozsa
In the formalism of measurement based quantum computation we start with a given fixed entangled state of many qubits and perform computation by applying a sequence of measurements…
Illustrating the concept of quantum information
Richard Jozsa
Over the past decade quantum information theory has developed into a vigorous field of research despite the fact that quantum information, as a precise concept, is undefined. Indee…
Notes on Hallgren's efficient quantum algorithm for solving Pell's equation
Richard Jozsa
Pell's equation is x^2-d*y^2=1 where d is a square-free integer and we seek positive integer solutions x,y>0. Let (x',y') be the smallest solution (i.e. having smallest A=x'+y'sqrt…
Universal quantum information compression and degrees of prior knowledge
Richard Jozsa, Stuart Presnell
We describe a universal information compression scheme that compresses any pure quantum i.i.d. source asymptotically to its von Neumann entropy, with no prior knowledge of the stru…
A stronger no-cloning theorem
Richard Jozsa
It is well known that (non-orthogonal) pure states cannot be cloned so one may ask: how much or what kind of additional (quantum) information is needed to supplement one copy of a…
Trading quantum for classical resources in quantum data compression
Patrick Hayden, Richard Jozsa, Andreas Winter
We study the visible compression of a source E of pure quantum signal states, or, more formally, the minimal resources per signal required to represent arbitrarily long strings of…