174 citations · 645 across the 19 of their papers we have counts for
14 papers · 1 filter
Gaussian quantum information over general quantum kinematical systems I: Gaussian states
Cedric Beny, Jason Crann, Hun Hee Lee +2
We develop a theory of Gaussian states over general quantum kinematical systems with finitely many degrees of freedom. The underlying phase space is described by a locally compact…
A quantum cellular automaton for one-dimensional QED
Pablo Arrighi, Cédric Bény, Terry Farrelly
We propose a discrete spacetime formulation of quantum electrodynamics in one-dimension (a.k.a the Schwinger model) in terms of quantum cellular automata, i.e. translationally inva…
Energy cost of entanglement extraction in complex quantum systems
Cedric Beny, Christopher T. Chubb, Terry Farrelly +1
What is the energy cost of extracting entanglement from complex quantum systems? In other words, given a state of a quantum system, how much energy does it cost to extract m EPR pa…
Quantum deconvolution
Cédric Bény
We propose a method for stably removing noise from measurements of a quantum many-body system. The question is cast to a linear inverse problem by using a quantum Fischer informati…
Inferring effective field observables from a discrete model
Cédric Bény
A spin system on a lattice can usually be modelled at large scales by an effective quantum field theory. A key mathematical result relating the two descriptions is the quantum cent…
Coarse-grained distinguishability of field interactions
Cédric Bény
Information-theoretical quantities such as statistical distinguishability typically result from optimisations over all conceivable observables. Physical theories, however, are not…