83 citations · 157 across the 11 of their papers we have counts for
11 papers
Testing quantum Darwinism dependence on observers' resources
Alexandre Feller, Benjamin Roussel, Adrien Pontlevy +1
The emergence of an objective classical picture is the core question of quantum Darwinism. How does this reconstructed classical picture depends on the resources available to obser…
On sampling determinantal and Pfaffian point processes on a quantum computer
Rémi Bardenet, Michaël Fanuel, Alexandre Feller
DPPs were introduced by Macchi as a model in quantum optics the 1970s. Since then, they have been widely used as models and subsampling tools in statistics and computer science. Mo…
From point processes to quantum optics and back
Rémi Bardenet, Alexandre Feller, Jérémie Bouttier +6
Some fifty years ago, in her seminal PhD thesis, Odile Macchi introduced permanental and determinantal point processes. Her initial motivation was to provide models for the set of…
Comment on "Strong Quantum Darwinism and Strong Independence are Equivalent to Spectrum Broadcast Structure"
Alexandre Feller, Benjamin Roussel, Irénée Frérot +1
In a recent Letter [Phys. Rev. Lett. 122, 010403 (2019)], an equivalence is proposed between the so-called Spectrum Broadcast Structure for a system-multienvironment quantum state,…
Einselection from incompatible decoherence channels
Alexandre Feller, Guillaume Coeuret Cauquil, Benjamin Roussel
Decoherence of quantum systems from entanglement with an unmonitored environment is to date the most compelling explanation of the emergence of a classical picture from a quantum w…
A time-frequency approach to relativistic correlations in quantum field theory
Benjamin Roussel, Alexandre Feller
Moving detectors in relativistic quantum field theories reveal the fundamental entangled structure of the vacuum which manifests, for instance, through its thermal character when p…
Entanglement entropy and correlations in loop quantum gravity
Alexandre Feller, Etera R. Livine
Black hole entropy is one of the few windows toward the quantum aspects of gravitation and its study over the years have highlighted the holographic nature of gravity. At the non-p…
Quantum Surface and Intertwiner Dynamics in Loop Quantum Gravity
Alexandre Feller, Etera R. Livine
We introduce simple generic models of surface dynamics in loop quantum gravity (LQG). A quantum surface is defined as a set of elementary patches of area glued together. We provide…
Surface state decoherence in loop quantum gravity, a first toy model
Alexandre Feller, Etera R. Livine
The quantum-to-classical transition through decoherence is a major facet of the semi-classical analysis of quantum models that are supposed to admit a classical regime, as quantum…
Ising Spin Network States for Loop Quantum Gravity: a Toy Model for Phase Transitions
Alexandre Feller, Etera R. Livine
Non-perturbative approaches to quantum gravity call for a deep understanding of the emergence of geometry and locality from the quantum state of the gravitational field. Without ba…
Wigner function approach to single electron coherence in quantum Hall edge channels
D. Ferraro, A. Feller, A. Ghibaudo +5
Recent electron quantum optics experiments performed with on-demand single electron sources call for a mixed time/frequency approach to electronic quantum coherence. Here, we prese…