The fruits of our labor
Discover the publications from our group
These publications mirror our commitment to advancing knowledge in quantum physics and to share this work in a clear manner.
2025
A Mathematical Structure for Amplitude-Mixing Error-Transparent Gates for Binomial Codes
Authors : Owen C. Wetherbee; Saswata Roy; Baptiste Royer; Valla Fatemi
Published in Quantum 9 1890
Decoding Multimode Gottesman-Kitaev-Preskill Codes with Noisy Auxiliary States
Authors : Marc-Antoine Roy; Thomas Pousset; Baptiste Royer
Published in arXiv:2510.12677
Enlarging the GKP stabilizer group for enhanced noise protection
Authors : Jonathan Pelletier; Baptiste Royer
Published in arXiv: 2509.12502
Using a Kerr interaction for GKP magic state preparation
Authors : Jérémie Boudreault; Ross Shillito; Jean-Baptiste Bertrand; Baptiste Royer
Published in arXiv: 2507:09864
Quantum sensing of displacements with stabilized GKP states
Authors : Lautaro Labarca; Sara Turcotte; Alexandre Blais; Baptiste Royer
Published in arXiv: 2506:20627
Towards Non-Abelian Quantum Signal Processing: Efficient Control of Hybrid Continuous- and Discrete-Variable Architectures
Authors : Shraddha Singh; Baptiste Royer; Steven M. Girvin
Published in arXiv:2504.19992
Synthetic High Angular Momentum Spin Dynamics in a Microwave Oscillator
Authors : Saswata Roy; Alen Senanian; Christopher S. Wang; Owen C. Wetherbee; Luojia Zhang; B. Cole; C. P. Larson; E. Yelton; Kartikeya Arora; Peter L. McMahon; B. L. T. Plourde; Baptiste Royer; Valla Fatemi
Published in Phys. Rev. X 15, 021009
2024
Bosonic Pauli+: Efficient Simulation of Concatenated Gottesman–Kitaev–Preskill Codes
Authors : Florian Hopfmueller; Maxime Tremblay; Philippe St–Jean; Baptiste Royer; Marc–Antoine Lemonde
Published in Quantum 8, 1539
High-fidelity gates in a transmon using bath engineering for passive leakage reset
Authors : Ted Thorbeck; Alexander McDonald; O. Lanes; John Blair; George Keefe; Adam A. Stabile; Baptiste Royer; Luke C. G. Govia; Alexandre Blais
Published in arXiv:2411.04101
Digital Homodyne and Heterodyne Detection for Stationary Bosonic Modes
Authors : Ingrid Strandberg; Axel M. Eriksson; Baptiste Royer; Mikael Kervinen; Simone Gasparinetti
Published in Phys. Rev. Lett. 133, 063601
2023
Loophole-free Bell inequality violation with superconducting circuits
Authors : Simon Storz; Josua Schär; Anatoly Kulikov; Paul Magnard; Philipp Kurpiers; Janis Lütolf; Theo Walter; Adrian Copetudo; Kevin Reuer; Abdulkadir Akin; Jean-Claude Besse; Mihai Gabureac; Graham J. Norris; Andrés Rosario; Ferran Martin; José Martinez; Waldimar Amaya; Morgan W. Mitchell; Carlos Abellan; Jean-Daniel Bancal; Nicolas Sangouard; Baptiste Royer; Alexandre Blais; Andreas Wallraff
Published in Nature volume 617, pages 265–270
Real-time quantum error correction beyond break-even
Authors : V. V. Sivak; A. Eickbusch; B. Royer; S. Singh; I. Tsioutsios; S. Ganjam; A. Miano; B. L. Brock; A. Z. Ding; L. Frunzio; S. M. Girvin; R. J. Schoelkopf; M. H. Devoret
Published in Nature volume 616, pages 50–55
2022
Fast universal control of an oscillator with weak dispersive coupling to a qubit
Authors : Alec Eickbusch; Volodymyr Sivak; Andy Z. Ding; Salvatore S. Elder; Shantanu R. Jha; Jayameenakshi Venkatraman; Baptiste Royer; S. M. Girvin; Robert J. Schoelkopf; Michel H. Devoret
Published in Nature Physics volume 18, pages 1464–1469
Encoding Qubits in Multimode Grid States
Authors : Baptiste Royer; Shraddha Singh; Steven M. Girvin
Published in PRX Quantum 3, 010335
Model-Free Quantum Control with Reinforcement Learning
Authors : V.V. Sivak; A. Eickbusch; H. Liu; B. Royer; I. Tsioutsios; M. H. Devoret
Published in Phys. Rev. X 12, 011059
2021
Quantum Metamaterial for Broadband Detection of Single Microwave Photons
Authors : Arne L. Grimsmo; Baptiste Royer; John Mark Kreikebaum; Yufeng Ye; Kevin O’Brien; Irfan Siddiqi; Alexandre Blais
Published in Phys. Rev. Applied 15, 034074
2020
Stabilization of Finite-Energy Gottesman-Kitaev-Preskill States
Authors : Baptiste Royer; Shraddha Singh; Steven M. Girvin
Published in Phys. Rev. Lett. 125, 260509
Microwave Quantum Link between Superconducting Circuits Housed in Spatially Separated Cryogenic Systems
Authors : Paul Magnard; Simon Storz; Philipp Kurpiers; Josua Schär; Fabian Marxer; Janis Lütolf; Theo Walter; J-C Besse; Mihai Gabureac; Kevin Reuer; Abdulkadir Akin; Baptiste Royer; Alexandre Blais; Andreas Wallraff
Published in Phys. Rev. Lett. 125, 260502
Demonstration of an All-Microwave Controlled-Phase Gate between Far Detuned Qubits
Authors : Sebastian Krinner; Philipp Kurpiers; Baptiste Royer; Paul Magnard; Ivan Tsitsilin; J-C Besse; Ants Remm; Alexandre Blais; Andreas Wallraff
Published in Phys. Rev. Applied 14, 044039
2019
Quantum Communication with Time-Bin Encoded Microwave Photons
Authors : Philipp Kurpiers; Marek Pechal; Baptiste Royer; Paul Magnard; Theo Walter; Johannes Heinsoo; Yves Salathé; Abdulkadir Akin; Simon Storz; J-C Besse; Simone Gasparinetti; Alexandre Blais; Andreas Wallraff
Published in Phys. Rev. Applied 12, 044067
2018
Qubit parity measurement by parametric driving in circuit QED
Authors : Baptiste Royer; Shruti Puri; Alexandre Blais
Published in SCIENCE ADVANCES Vol 4, Issue 11
Fast and Unconditional All-Microwave Reset of a Superconducting Qubit
Authors : Paul Magnard; Philipp Kurpiers; Baptiste Royer; Theo Walter; J-C Besse; Simone Gasparinetti; Marek Pechal; Johannes Heinsoo; Simon Storz; Alexandre Blais; Andreas Wallraff
Published in Phys. Rev. Lett. 121, 060502
Deterministic quantum state transfer and remote entanglement using microwave photons
Authors : Philipp Kurpiers; Paul Magnard; Theo Walter; Baptiste Royer; Marek Pechal; Johannes Heinsoo; Yves Salathé; Abdulkadir Akin; Simon Storz; J-C Besse; Simone Gasparinetti; Alexandre Blais; Andreas Wallraff
Published in Nature volume 558, pages 264–267
Itinerant Microwave Photon Detector
Authors : Baptiste Royer; Arne L Grimsmo; Alexandre Choquette-Poitevin; Alexandre Blais
Published in Phys. Rev. Lett. 120, 203602
2017
Fast and high-fidelity entangling gate through parametrically modulated longitudinal coupling
Authors : Baptiste Royer; Arne L Grimsmo; Nicolas Didier; Alexandre Blais
Published in Quantum 1, 11
2014
Multiplexed readout of transmon qubits with Josephson bifurcation amplifiers
Authors : Vivien Schmitt; Xin Zhou; K Juliusson; B Royer; Alexandre Blais; Patrice Bertet; Denis Vion; D Esteve
Published in Phys. Rev. A 90, 062333