4.9k citations · 14.4k across the 107 of their papers we have counts for
5 papers · 1 filter
The optimal cloning of quantum coherent states is non-Gaussian
N. J. Cerf, O. Krueger, P. Navez +2
We consider the optimal cloning of quantum coherent states with single-clone and joint fidelity as figures of merit. Both optimal fidelities are attained for phase space translatio…
The uncertainty relation for joint measurement of position and momentum
R. F. Werner
We prove an uncertainty relation, which imposes a bound on any joint measurement of position and momentum. It is of the form , where the `uncertainties' quanti…
Reversible quantum cellular automata
B. Schumacher, R. F. Werner
We define quantum cellular automata as infinite quantum lattice systems with discrete time dynamics, such that the time step commutes with lattice translations and has strictly fin…
On quantum error-correction by classical feedback in discrete time
M. Gregoratti, R. F. Werner
We consider the problem of correcting the errors incurred from sending quantum information through a noisy quantum environment by using classical information obtained from a measur…
Distillability and positivity of partial transposes in general quantum field systems
Rainer Verch, Reinhard F. Werner
Criteria for distillability, and the property of having a positive partial transpose, are introduced for states of general bipartite quantum systems. The framework is sufficiently…