output
20062022
most citedReal-time quantum feedback prepares and stabilizes photon number states

616 citations

76 papers

quant-ph2022★ 21 cited

Dynamically enhancing qubit-photon interactions with anti-squeezing

M. Villiers, W. C. Smith, A. Petrescu +7

The interaction strength of an oscillator to a qubit grows with the oscillator's vacuum field fluctuations. The well known degenerate parametric oscillator has revived interest in…

quant-ph2022★ 5 cited

Correlation functions for realistic continuous quantum measurement

Pierre Guilmin, Pierre Rouchon, Antoine Tilloy

We propose a self-contained and accessible derivation of an exact formula for the -point correlation functions of the signal measured when continuously observing a quantum syste…

quant-ph2022★ 29 cited

Two-photon driven Kerr quantum oscillator with multiple spectral degeneracies

Diego Ruiz, Ronan Gautier, Jérémie Guillaud +1

Kerr nonlinear oscillators driven by a two-photon process are promising systems to encode quantum information and to ensure a hardware-efficient scaling towards fault-tolerant quan…

quant-ph2022★ 11 cited

Structurally stable subharmonic regime of a driven quantum Josephson circuit

Michiel Burgelman, Pierre Rouchon, Alain Sarlette +1

Driven quantum nonlinear oscillators, while essential for quantum technologies, are generally prone to complex chaotic dynamics that fall beyond the reach of perturbative analysis.…

quant-ph2022★ 71 cited

One hundred second bit-flip time in a two-photon dissipative oscillator

C. Berdou, A. Murani, U. Reglade +19

Current implementations of quantum bits (qubits) continue to undergo too many errors to be scaled into useful quantum machines. An emerging strategy is to encode quantum informatio…

math.FA2022★ 1 cited

Tropical reproducing kernels and optimization

Pierre-Cyril Aubin-Frankowski, Stéphane Gaubert

Hilbertian kernel methods and their positive semidefinite kernels have been extensively used in various fields of applied mathematics and machine learning, owing to their several e…

math.OC2021★ 13 cited

Epidemic Management with Admissible and Robust Invariant Sets

Willem Esterhuizen, Jean Lévine, Stefan Streif

We present a detailed set-based analysis of the well-known SIR and SEIR epidemic models subjected to hard caps on the proportion of infective individuals, and bounds on the allowab…

cond-mat.mes-hall2021★ 2 cited

Staggered spin-orbit interaction in a nanoscale device

L. C. Contamin, T. Cubaynes, W. Legrand +9

The coupling of the spin and the motion of charge carriers stems directly from the atomic structure of a conductor. It has become an important ingredient for the emergence of topol…

stat.ML2021★ 5 cited

Handling Hard Affine SDP Shape Constraints in RKHSs

Pierre-Cyril Aubin-Frankowski, Zoltan Szabo

Shape constraints, such as non-negativity, monotonicity, convexity or supermodularity, play a key role in various applications of machine learning and statistics. However, incorpor…

quant-ph2020★ 27 cited

Magnifying quantum phase fluctuations with Cooper-pair pairing

W. C. Smith, M. Villiers, A. Marquet +6

Remarkably, complex assemblies of superconducting wires, electrodes, and Josephson junctions are compactly described by a handful of collective phase degrees of freedom that behave…

quant-ph2020★ 40 cited

Number-resolved photocounter for propagating microwave mode

Rémy Dassonneville, Réouven Assouly, Théau Peronnin +2

Detectors of propagating microwave photons have recently been realized using superconducting circuits. However a number-resolved photocounter is still missing. In this letter, we d…

quant-ph2020★ 25 cited

Multiplexed photon number measurement

Antoine Essig, Quentin Ficheux, Théau Peronnin +6

When a two-level system -- a qubit -- is used as a probe of a larger system, it naturally leads to answering a single yes-no question about the system state. Here we propose a meth…

cond-mat.mes-hall2019★ 17 cited

Theory of interactions between cavity photons induced by a mesoscopic circuit

Audrey Cottet, Zaki Leghtas

We use a quantum path integral approach to describe the behavior of a microwave cavity coupled to a dissipative mesoscopic circuit. We integrate out the mesoscopic electronic degre…

quant-ph2019★ 249 cited

Exponential suppression of bit-flips in a qubit encoded in an oscillator

Raphaël Lescanne, Marius Villiers, Théau Peronnin +6

A quantum system interacts with its environment, if ever so slightly, no matter how much care is put into isolating it. As a consequence, quantum bits (qubits) undergo errors, putt…

eess.SY2019★ 30 cited

Approximate Nonlinear Regulation via Identification-Based Adaptive Internal Models

Michelangelo Bin, Pauline Bernard, Lorenzo Marconi

This paper concerns the problem of adaptive output regulation for multivariable nonlinear systems in normal form. We present a regulator employing an adaptive internal model of the…

quant-ph2019★ 5 cited

Benchmarking maximum-likelihood state estimation with an entangled two-cavity state

Valentin Métillon, Stefan Gerlich, Michel Brune +3

The efficient quantum state reconstruction algorithm described in [P. Six et al., Phys. Rev. A 93, 012109 (2016)] is experimentally implemented on the non-local state of two microw…

cond-mat.mes-hall2019★ 51 cited

Highly coherent spin states in carbon nanotubes coupled to cavity photons

T. Cubaynes, M. R. Delbecq, M. C. Dartiailh +8

Spins confined in quantum dots are considered as a promising platform for quantum information processing. While many advanced quantum operations have been demonstrated, experimenta…

quant-ph2019★ 111 cited

Detecting itinerant microwave photons with engineered non-linear dissipation

Raphaël Lescanne, Samuel Deléglise, Emanuele Albertinale +6

Single photon detection is a key resource for sensing at the quantum limit and the enabling technology for measurement based quantum computing. Photon detection at optical frequenc…

math.OC2019★ 3 cited

On Singularities of Flat Affine Systems With States and Controls

Yirmeyahu J. Kaminski, Jean Lévine, François Ollivier

We study the set of intrinsic singularities of flat affine systems with controls and states using the notion of Lie-Bäcklund atlas, previously introduced by the authors.…

quant-ph2018★ 47 cited

Structural instability of driven Josephson circuits prevented by an inductive shunt

Lucas Verney, Raphaël Lescanne, Michel H. Devoret +2

Superconducting circuits are a versatile platform to implement a multitude of Hamiltonians which perform quantum computation, simulation and sensing tasks. A key ingredient for rea…

quant-ph2018

Observing the escape of a driven quantum Josephson circuit into unconfined states

Raphaël Lescanne, Lucas Verney, Quentin Ficheux +4

Josephson circuits have been ideal systems to study complex non-linear dynamics which can lead to chaotic behavior and instabilities. More recently, Josephson circuits in the quant…

quant-ph2018★ 46 cited

Demonstration of an effective ultrastrong coupling between two oscillators

Danijela Marković, Sébastien Jezouin, Quentin Ficheux +6

When the coupling rate between two quantum systems becomes as large as their characteristic frequencies, it induces dramatic effects on their dynamics and even on the nature of the…

math.AP2018

Exact controllability of a linear Korteweg-de Vries equation by the flatness approach

Ivonne Rivas, Philippe Martin, Lionel Rosier +1

We consider a linear Korteweg-de Vries equation on a bounded domain with a left Dirichlet boundary control.The controllability to the trajectories of such a system was proved in th…

quant-ph2018★ 6 cited

Exponential stochastic stabilization of a two-level quantum system via strict Lyapunov control

Gerardo Cardona, Alain Sarlette, Pierre Rouchon

This article provides a novel continuous-time state feedback control strategy to stabilize an eigenstate of the Hermitian measurement operator of a two-level quantum system. In ope…