Advances in bosonic quantum error correction with Gottesman–Kitaev–Preskill Codes: Theory, engineering and applications

AJ Brady, A Eickbusch, S Singh, J Wu… - Progress in Quantum …, 2024 - Elsevier
Encoding quantum information into a set of harmonic oscillators is considered a hardware
efficient approach to mitigate noise for reliable quantum information processing. Various …

Non-Gaussian quantum states and where to find them

M Walschaers - PRX quantum, 2021 - APS
Gaussian states have played an important role in the physics of continuous-variable
quantum systems. They are appealing for the experimental ease with which they can be …

[HTML][HTML] Quantum non-Gaussian optomechanics and electromechanics

AA Rakhubovsky, DW Moore, R Filip - Progress in Quantum Electronics, 2024 - Elsevier
Mechanical systems prepared in quantum non-Gaussian states constitute a new advanced
class of phenomena breaking the laws of classical physics. Specifically, such mechanical …

Resources for bosonic quantum computational advantage

U Chabaud, M Walschaers - Physical Review Letters, 2023 - APS
Quantum computers promise to dramatically outperform their classical counterparts.
However, the nonclassical resources enabling such computational advantages are …

Witnessing wigner negativity

U Chabaud, PE Emeriau, F Grosshans - Quantum, 2021 - quantum-journal.org
Negativity of the Wigner function is arguably one of the most striking non-classical features
of quantum states. Beyond its fundamental relevance, it is also a necessary resource for …

Fast simulation of bosonic qubits via Gaussian functions in phase space

JE Bourassa, N Quesada, I Tzitrin, A Száva, T Isacsson… - PRX Quantum, 2021 - APS
Bosonic qubits are a promising route to building fault-tolerant quantum computers on a
variety of physical platforms. Studying the performance of bosonic qubits under realistic …

Practical framework for conditional non-Gaussian quantum state preparation

M Walschaers, V Parigi, N Treps - PRX Quantum, 2020 - APS
We develop a general formalism, based on the Wigner function representation of continuous-
variable quantum states, to describe the action of an arbitrary conditional operation on a …

Classical simulation of Gaussian quantum circuits with non-Gaussian input states

U Chabaud, G Ferrini, F Grosshans, D Markham - Physical Review Research, 2021 - APS
We consider Gaussian quantum circuits supplemented with non-Gaussian input states and
derive sufficient conditions for efficient classical strong simulation of these circuits. In …

Sufficient condition for universal quantum computation using bosonic circuits

C Calcluth, N Reichel, A Ferraro, G Ferrini - PRX Quantum, 2024 - APS
Continuous-variable bosonic systems stand as prominent candidates for implementing
quantum computational tasks. While various necessary criteria have been established to …

Phase-space methods for representing, manipulating, and correcting Gottesman-Kitaev-Preskill qubits

LJ Mensen, BQ Baragiola, NC Menicucci - Physical Review A, 2021 - APS
The Gottesman-Kitaev-Preskill (GKP) encoding of a qubit into a bosonic mode is a promising
bosonic code for quantum computation due to its tolerance for noise and all-Gaussian gate …