Tom Douce
YOU?
Author Swipe
View article: Lecture notes on quantum computing
Lecture notes on quantum computing Open
These are the lecture notes of the master's course "Quantum Computing", taught at Chalmers University of Technology every fall since 2020, with participation of students from RWTH Aachen and Delft University of Technology. The aim of this …
View article: Building Trust for Continuous Variable Quantum States
Building Trust for Continuous Variable Quantum States Open
In this work we develop new methods for the characterisation of continuous variable quantum states using heterodyne measurement in both the trusted and untrusted settings. First, building on quantum state tomography with heterodyne detecti…
View article: Probabilistic fault-tolerant universal quantum computation and sampling problems in continuous variables
Probabilistic fault-tolerant universal quantum computation and sampling problems in continuous variables Open
Continuous-variable (CV) devices are a promising platform for demonstrating large-scale quantum information protocols. In this framework we define a general quantum computational model based on a CV hardware. It consists of vacuum input st…
View article: Continuous-variable sampling from photon-added or photon-subtracted squeezed states
Continuous-variable sampling from photon-added or photon-subtracted squeezed states Open
We introduce a new family of quantum circuits in Continuous Variables and we\nshow that, relying on the widely accepted conjecture that the polynomial\nhierarchy of complexity classes does not collapse, their output probability\ndistributi…
View article: Continuous-Variable Sampling
Continuous-Variable Sampling Open
We introduce a new family of quantum circuits in Continuous Variables and we show that, relying on the widely accepted conjecture that the polynomial hierarchy of complexity classes does not collapse, their output probability distribution …
View article: Continuous-Variable Instantaneous Quantum Computing is Hard to Sample
Continuous-Variable Instantaneous Quantum Computing is Hard to Sample Open
Instantaneous quantum computing is a subuniversal quantum complexity class, whose circuits have proven to be hard to simulate classically in the discrete-variable realm. We extend this proof to the continuous-variable (CV) domain by using …
View article: Realistic quantum information processing: from devices to computational models
Realistic quantum information processing: from devices to computational models Open
La theorie du calcul quantique se situe a la frontiere de la physique quantique et de l’informatique. Par consequent, les deux domaines contribuent a la rendre d’autant plus riche en apportant leurs propres methodes et outils mathematiques…
View article: Coupling a single nitrogen-vacancy center to a superconducting flux qubit in the far-off-resonance regime
Coupling a single nitrogen-vacancy center to a superconducting flux qubit in the far-off-resonance regime Open
We present a theoretical proposal to couple a single Nitrogen-Vacancy (NV)\ncenter to a superconducting flux qubit (FQ) in the regime where both systems\nare off resonance. The coupling between both quantum devices is achieved\nthrough the…
View article: Toolbox for continuous-variable entanglement production and measurement using spontaneous parametric down-conversion
Toolbox for continuous-variable entanglement production and measurement using spontaneous parametric down-conversion Open
We provide a toolbox for continuous variables quantum state engineering and characterization of biphoton states produced by spontaneous parametric down conversion in a transverse pump configuration. We show that the control of the pump bea…