## PUBLICATIONS

### PREPRINTS

Preparing Schrödinger cat states in a microwave cavity using a neural network H. Hutin, P. Bilous, C. Ye, S. Abdollahi, L. Cros, T. Dvir, T. Shah, Y. Cohen, A. Bienfait, F. Marquardt, B. Huard
arXiv:2409.05557

Monitoring the energy of a cavity by observing the emission of a repeatedly excited qubit H. Hutin, A. Essig, R. Assouly, P. Rouchon, A. Bienfait, B. Huard
arXiv:2402.05046

### ARTICLES

Harnessing two-photon dissipation for enhanced quantum measurement and control A. Marquet, S. Dupouy, U. Reglade, A. Essig, J. Cohen, E. Albertinale,
A. Bienfait, T. Peronnin, S. Jezouin, R. Lescanne, and B. Huard (2024) **Phys. Rev. Applied** 22, 034053 (
open access PDF)

Autoparametric resonance extending the bit-flip time of a cat qubit up to 0.3 s A. Marquet, A. Essig, J. Cohen, N. Cottet, A. Murani, E. Albertinale, S. Dupouy, A. Bienfait, T. Peronnin, S. Jezouin, R. Lescanne, B. Huard (2024) **Phys. Rev. X** 14, 021019 (open access PDF)

Improving magnetic-field resilience of NbTiN planar resonators using a hard-mask fabrication technique A. Bahr, M. Boselli, B. Huard, A. Bienfait (2024) **Applied Physics Letters** 124, 114004 (
open access PDF)

Probing many-body correlations using quantum-cascade correlation spectroscopy
L. Scarpelli, C. Elouard, M. Johnsson, M. Morassi, A. Lemaitre, I. Carusotto, J. Bloch, S. Ravets, M. Richard, T. Volz (2024) **Nature Physics** (open access PDF)

Complete positivity violation of the reduced dynamics in higher-order quantum adiabatic elimination
M. Tokieda, C. Elouard, A. Sarlette, P. Rouchon (2023) **IFAC-PapersOnLine** 56, 1333 (open access PDF)

Cloaking a qubit in a cavity C. Lledó, R. Dassonneville, A. Moulinas, J. Cohen, R. Shillito, A. Bienfait, B. Huard, A. Blais (2023) **Nature Communications** 14, 6313 (open access PDF)

Cyclic quantum engines enhanced by strong bath coupling
C. Lombard Latune, G. Pleasance, F. Petruccione (2023) **Phys. Rev. Applied** 20, 024038 (
open access PDF)

Demonstration of Quantum Advantage in Microwave Quantum Radar
R. Assouly, R. Dassonneville, T. Peronnin, A. Bienfait and B. Huard (2023) **Nature Physics** (open access PDF)

Extending the laws of thermodynamics for arbitrary autonomous quantum systems
C. Elouard, C. Lombard Latune (2023) **PRX Quantum** 4, 020309 (
open access PDF)

A topologically protected quantum dynamo effect in a driven spin-boson model
E. Bernhardt, C. Elouard, K. Le Hur (2023) **Physical Review A** 107, 022219 (
open access PDF)

Anomalous energy exchanges and Wigner function negativities in a single qubit gate M. Maffei, C. Elouard, B. O. Goes, B. Huard, A. N. Jordan, A. Auffèves (2023) **Physical Review A** 107 (2), 023710 (open access PDF)

Propagating Quantum Microwaves: Towards Applications in Communication and Sensing
M. Casariego, E. Zambrini Cruzeiro, S. Gherardini, T. Gonzalez-Raya, R. André, G. Frazão, G. Catto, M. Möttönen, D. Datta, K. Viisanen, J. Govenius, M. Prunnila, K. Tuominen, M. Reichert, M. Renger, K. G. Fedorov, F. Deppe, H. van der Vliet, A. J. Matthews, Y. Fernández, R. Assouly, R. Dassonneville, B. Huard, M. Sanz, Y. Omar (2023) **Quantum Science and Technology** 8 (2), 023001 (
open access PDF)

Energetics of a Single Qubit Gate
J. Stevens, D. Szombati, M. Maffei, C. Elouard, R. Assouly, N. Cottet, R. Dassonneville, Q. Ficheux, S. Zeppetzauer, A. Bienfait, A. N. Jordan, A. Auffèves, B. Huard (2022) **Phys. Rev. Lett.** 129, 110601 (open access PDF).

Steady state in strong system-bath coupling regime: reaction coordinate versus
perturbative expansion
C. Lombard Latune (2022) **Phys. Rev. E** 105, 024126 ( open access PDF)

Steady state in ultrastrong coupling regime: perturbative expansion and first orders
C. Lombard Latune (2022) **Quanta** 11, 53 ( open access PDF)

Deep Reinforcement Learning for Quantum State Preparation with Weak Nonlinear Measurements
R. Porotti, A. Essig, B. Huard, F. Marquardt (2022), **Quantum** 6, 747 (
arXiv:2107.08816)

Topological power pumping in quantum circuits
J. Luneau, C. Dutreix, Q. Ficheux, P. Delplace, B. Douçot, B. Huard, D. Carpentier (2022), **Phys. Rev. Research** 4, 013169 (arXiv:2109.12897).

Multiplexed photon number measurement
A. Essig, Q. Ficheux, T. Peronnin, N. Cottet, R. Lescanne, A. Sarlette, P. Rouchon, Z. Leghtas, B. Huard (2021), **Phys. Rev. X** 11, 031045 (open access PDF).

Dissipative stabilization of squeezing beyond 3 dB in a microwave mode
R. Dassonneville, R. Assouly, T. Peronnin, A. A. Clerk, A. Bienfait, B. Huard (2021), **PRX Quantum** 2, 020323 (open access PDF). See synopsis in Physics 14, s59.

Number-resolved photocounter for propagating microwave mode
R. Dassonneville, R. Assouly, T. Peronnin, P. Rouchon, B. Huard (2020), **Phys. Rev. Applied** 14, 044022 (
open access PDF)

An Interaction-Free Quantum Measurement-Driven Engine
C. Elouard, M. Waegell, B. Huard and A.N. Jordan (2020), **Found. Phys.** (open access PDF)

Quantum adiabatic elimination at arbitrary order for photon number measurement
A. Sarlette, P. Rouchon, A. Essig, Q. Ficheux, B. Huard, 2020 **IFAC World Congress**, IFAC, Jul 2020, Berlin, Germany (open access PDF)

Sequential dispersive measurement of a superconducting qubit
T. Peronnin, D. Marković, Q. Ficheux and B. Huard (2020), **Phys. Rev. Lett.** 124, 180502 (open access PDF)

The energetic cost of work extraction
J. Monsel, M. Fellous-Asiani, B. Huard and A. Auffèves (2020), **Phys. Rev. Lett.** 124, 130601 (open access PDF)

Exponential suppression of bit-flips in a qubit encoded in an oscillator
R. Lescanne, M. Villiers, T. Peronnin, A. Sarlette, M. Delbecq, B. Huard, T. Kontos, M. Mirrahimi, Z. Leghtas (2020), **Nature Physics**
(open access PDF)

Injection locking and parametric locking in a superconducting circuit
D. Marković, J.-D. Pillet, E. Flurin, N. Roch and B. Huard (2019), **Phys. Rev. Applied** 12, 024034 (open access PDF)

Escape of a Driven Quantum Josephson Circuit into Unconfined States
R. Lescanne, L. Verney, Q. Ficheux, M. H. Devoret, B. Huard, M. Mirrahimi and Z. Leghtas (2019), **Phys. Rev. Applied** 11, 014030 (open access PDF)

Maxwell's demon in superconducting circuits
N. Cottet and B. Huard (2019). In: Binder F., Correa L., Gogolin C., Anders J., Adesso G. (eds) **Thermodynamics in the Quantum Regime. Fundamental Theories of Physics**, vol 195. Springer, Cham (open access PDF)

Demonstration of an effective ultrastrong coupling between two oscillators
D. Marković, S. Jezouin, Q. Ficheux, S. Fedortchenko, S. Felicetti, T. Coudreau, P. Milman, Z. Leghtas and B. Huard (2018), **Phys. Rev. Lett.** 121, 040505 (open access PDF)

Dynamics of a qubit while simultaneously monitoring its relaxation and dephasing
Q. Ficheux, S. Jezouin, Z. Leghtas and B. Huard (2018), **Nat. Comm.** 9, 1926
(supplementary information). Click on the video to access all experimental videos.

Observing a quantum Maxwell demon at work
N. Cottet, S. Jezouin, L. Bretheau, P. Campagne-Ibarcq, Q. Ficheux, J. Anders, A. Auffèves, R. Azouit, P. Rouchon and B. Huard (2017), **PNAS** 114, 7561 (open access PDF)

Extracting work from quantum measurement in Maxwell demon engines
C. Elouard, D. Herrera-Marti, B. Huard, A. Auffèves (2017),
**Phys. Rev. Lett.** 118, 260603 (open access PDF)

Quantum simulation of ultrastrongly coupled bosonic modes using superconducting circuits
S. Fedortchenko, S. Felicetti, D. Marković, S. Jezouin, A. Keller, T. Coudreau, B. Huard, and P. Milman (2017), **Phys. Rev. A** 95, 042313 (open access PDF)

Using Spontaneous Emission of a Qubit as a Resource for Feedback Control
P. Campagne-Ibarcq, S. Jezouin, N. Cottet, P. Six, L. Bretheau, F. Mallet, A. Sarlette, P. Rouchon, and B. Huard (2016),
**Phys. Rev. Lett.** 117, 060502 (open access PDF, supplementary information)

Observing quantum state diffusion by heterodyne detection of fluorescence
P. Campagne-Ibarcq, P. Six, L. Bretheau, A. Sarlette, M. Mirrahimi, P. Rouchon, and B. Huard (2016), **Phys. Rev. X** 6, 011002 (PDF en libre accès, information supplémentaire)

Anatomy of Fluorescence: Quantum trajectory statistics from continuously measuring
spontaneous emission
A.N. Jordan, A. Chantasri, P. Rouchon and B. Huard (2016), **Quantum Stud.: Math. Found.** 3: 237. (PDF en libre accès)

Quantum state tomography with measurement imperfections and decoherence
P. Six, P. Campagne-Ibarcq, I. Dotsenko, A. Sarlette, B. Huard, and P. Rouchon (2016), **Phys. Rev. A** 93, 012109 (PDF en libre accès)

Parameter estimation from measurements along quantum trajectories
P. Six, P. Campagne-Ibarcq, L. Bretheau, B. Huard, and P. Rouchon (2015), **54th IEEE Conference on Decision and Control**

Les microprocesseurs du futur
B. Huard (2015), **La Recherche** 501, 62

Optimal design for the Josephson mixer
J.-D. Pillet, E. Flurin, F. Mallet, and B. Huard (2015), **Applied Physics Letters** 106, 222603 (PDF en libre accès, information supplémentaire)

Quantum dynamics of an electromagnetic mode that cannot contain N photons
L. Bretheau, P. Campagne-Ibarcq, E. Flurin, F. Mallet, and B. Huard (2015), **Science**, 348, 776 (PDF en libre accès, information supplémentaire, mentionné dans Arstechnica et
Phys.org)

Superconducting quantum node for entanglement and storage of microwave radiation
E. Flurin, N. Roch, J.-D. Pillet, F. Mallet and B. Huard (2015), **Phys. Rev. Lett.** 114, 090503 (PDF en libre accès, information supplémentaire)

Observing interferences between past and future quantum states in resonance fluorescence
P. Campagne-Ibarcq, L. Bretheau, E. Flurin, A. Auffèves, F. Mallet and B. Huard (2014), **Phys. Rev. Lett.** 112, 180402 (PDF en libre accès, information supplémentaire)

Stabilizing the trajectory of a superconducting qubit by projective measurement feedback
P. Campagne-Ibarcq, E. Flurin, N. Roch, D. Darson, P. Morfin, M. Mirrahimi, M. H. Devoret, F. Mallet and B. Huard (2013), **Phys. Rev. X** 3, 021008 (PDF en libre accès, information supplémentaire)

Widely tunable, non-degenerate three-wave mixing microwave device operating near
the quantum limitN. Roch, E. Flurin, F. Nguyen, P. Morﬁn, P. Campagne-Ibarcq, M. H. Devoret and B. Huard (2012), **Phys. Rev. Lett.** 108, 147701 (PDF en libre accès, information supplémentaire)

Generating Entangled Microwave Radiation Over Two Transmission Lines
E. Flurin, N. Roch, F. Mallet, M. H. Devoret and B. Huard (2012), **Phys. Rev. Lett.** 109, 183901 (open access PDF,supplementary information, Viewpoint in Physics )

Strong measurement and quantum feedback for persistent Rabi oscillations in circuit QED experiments
M. Mirrahimi, B. Huard, and M. H. Devoret, **2012 IEEE 51st Annual Conference on Decision and Control (CDC)** (PDF en libre accès)