67 citations · 198 across the 9 of their papers we have counts for
9 papers
Approximate recovery with locality and symmetry constraints
Cédric Bény, Zoltán Zimborás, Fernando Pastawski
Numerous quantum many-body systems are characterized by either fundamental or emergent constraints---such as gauge symmetries or parity superselection for fermions---which effectiv…
Algebraic approach to quantum theory: a finite-dimensional guide
Cédric Bény, Florian Richter
This document is meant as a pedagogical introduction to the modern language used to talk about quantum theory, especially in the field of quantum information. It assumes that the r…
Ultracold Chemistry and its Reaction Kinetics
Florian Richter, Daniel Becker, Cédric Bény +3
We study the reaction kinetics of chemical processes occurring in the ultracold regime and systematically investigate their dynamics. Quantum entanglement is found to play a key ro…
Renormalisation as an inference problem
Cédric Bény, Tobias J. Osborne
In physics we attempt to infer the rules governing a system given only the results of imprecise measurements. This is an ill-posed problem because certain features of the system's…
Information geometric approach to the renormalisation group
Cédric Bény, Tobias J. Osborne
We propose a general formulation of the renormalisation group as a family of quantum channels which connect the microscopic physical world to the observable world at some scale. By…
Causal structure of the entanglement renormalization ansatz
Cédric Bény
We show that the multiscale entanglement renormalization ansatz (MERA) can be reformulated in terms of a causality constraint on discrete quantum dynamics. This causal structure is…
Approximate simulation of quantum channels
Cédric Bény, Ognyan Oreshkov
In Ref. [1], we proved a duality between two optimizations problems. The primary one is, given two quantum channels M and N, to find a quantum channel R such that RN is optimally c…
Quantum error correction on infinite-dimensional Hilbert spaces
Cédric Bény, Achim Kempf, David W. Kribs
We present a generalization of quantum error correction to infinite-dimensional Hilbert spaces. The generalization yields new classes of quantum error correcting codes that have no…
Unsharp pointer observables and the structure of decoherence
Cédric Bény
The theory of decoherence attempts to explain the emergent classical behaviour of a quantum system interacting with its quantum environment. In order to formalize this mechanism we…