Continuous-variable quantum computing in the quantum optical frequency comb

O Pfister - Journal of Physics B: Atomic, Molecular and Optical …, 2019 - iopscience.iop.org
This topical review introduces the theoretical and experimental advances in continuous-
variable (CV)—ie qumode-based in lieu of qubit-based—large-scale, fault-tolerant quantum …

Building a large-scale quantum computer with continuous-variable optical technologies

K Fukui, S Takeda - Journal of Physics B: Atomic, Molecular and …, 2022 - iopscience.iop.org
Realizing a large-scale quantum computer requires hardware platforms that can
simultaneously achieve universality, scalability, and fault tolerance. As a viable pathway to …

Quantum error correction of a qubit encoded in grid states of an oscillator

P Campagne-Ibarcq, A Eickbusch, S Touzard… - Nature, 2020 - nature.com
The accuracy of logical operations on quantum bits (qubits) must be improved for quantum
computers to outperform classical ones in useful tasks. One method to achieve this is …

Blueprint for a scalable photonic fault-tolerant quantum computer

JE Bourassa, RN Alexander, M Vasmer, A Patil… - Quantum, 2021 - quantum-journal.org
Photonics is the platform of choice to build a modular, easy-to-network quantum computer
operating at room temperature. However, no concrete architecture has been presented so …

Encoding a qubit in a trapped-ion mechanical oscillator

C Flühmann, TL Nguyen, M Marinelli, V Negnevitsky… - Nature, 2019 - nature.com
The stable operation of quantum computers will rely on error correction, in which single
quantum bits of information are stored redundantly in the Hilbert space of a larger system …

Quantum information processing with bosonic qubits in circuit QED

A Joshi, K Noh, YY Gao - Quantum Science and Technology, 2021 - iopscience.iop.org
The unique features of quantum theory offer a powerful new paradigm for information
processing. Translating these mathematical abstractions into useful algorithms and …

Performance and structure of single-mode bosonic codes

VV Albert, K Noh, K Duivenvoorden, DJ Young… - Physical Review A, 2018 - APS
The early Gottesman, Kitaev, and Preskill (GKP) proposal for encoding a qubit in an
oscillator has recently been followed by cat-and binomial-code proposals. Numerically …

Toward large-scale fault-tolerant universal photonic quantum computing

S Takeda, A Furusawa - APL Photonics, 2019 - pubs.aip.org
Photonic quantum computing is one of the leading approaches to universal quantum
computation. However, large-scale implementation of photonic quantum computing has …

Deterministic multi-mode gates on a scalable photonic quantum computing platform

MV Larsen, X Guo, CR Breum, JS Neergaard-Nielsen… - Nature Physics, 2021 - nature.com
Quantum computing can be realized with numerous different hardware platforms and
computational protocols. A highly promising, and potentially scalable, idea is to combine a …

Quantum error correction with the Gottesman-Kitaev-Preskill code

AL Grimsmo, S Puri - PRX Quantum, 2021 - APS
The Gottesman-Kitaev-Preskill (GKP) code was proposed in 2001 by Daniel Gottesman,
Alexei Kitaev, and John Preskill as a way to encode a qubit in an oscillator. The GKP …