88 citations · 325 across the 8 of their papers we have counts for
9 papers
Protecting bosonic codes from ancilla-induced errors with continuous-variable flags
Thomas Décultot, Ronan Gautier, Mazyar Mirrahimi
Bosonic quantum error correction represents a route towards significant hardware overhead reduction for fault-tolerant quantum computation. However, controlling quantum harmonic os…
Non-perturbative switching rates in bistable open quantum systems: from driven Kerr oscillators to dissipative cat qubits
Léon Carde, Ronan Gautier, Nicolas Didier +3
In this work, we use path integral techniques to predict the switching rate in a single-mode bistable open quantum system. While analytical expressions are well-known to be accessi…
Optimal control in large open quantum systems: the case of transmon readout and reset
Ronan Gautier, Élie Genois, Alexandre Blais
We present a framework that combines the adjoint-state method together with reverse-time backpropagation to solve prohibitively large open-system quantum control problems. Our appr…
Quantum control of a cat-qubit with bit-flip times exceeding ten seconds
Ulysse Réglade, Adrien Bocquet, Ronan Gautier +14
Quantum bits (qubits) are prone to several types of errors due to uncontrolled interactions with their environment. Common strategies to correct these errors are based on architect…
Designing High-Fidelity Zeno Gates for Dissipative Cat Qubits
Ronan Gautier, Mazyar Mirrahimi, Alain Sarlette
Bosonic cat qubits stabilized with a driven two-photon dissipation are systems with exponentially biased noise, opening the door to low-overhead, fault-tolerant and universal quant…
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…
Combined Dissipative and Hamiltonian Confinement of Cat Qubits
Ronan Gautier, Alain Sarlette, Mazyar Mirrahimi
Quantum error correction with biased-noise qubits can drastically reduce the hardware overhead for universal and fault-tolerant quantum computation. Cat qubits are a promising real…
Strongly-Interacting Bosons in a Two-Dimensional Quasicrystal Lattice
Ronan Gautier, Hepeng Yao, Laurent Sanchez-Palencia
Quasicrystals exhibit exotic properties inherited from the self-similarity of their long-range ordered, yet aperiodic, structure. The recent realization of optical quasicrystal lat…
Optimizing quantum phase estimation for the simulation of Hamiltonian eigenstates
P. M. Q. Cruz, G. Catarina, R. Gautier +1
We revisit quantum phase estimation algorithms for the purpose of obtaining the energy levels of many-body Hamiltonians and pay particular attention to the statistical analysis of…