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

Abstract

Realizing a large-scale quantum computer requires hardware platforms that can simultaneously achieve universality, scalability, and fault tolerance. As a viable pathway to meeting these requirements, quantum computation based on continuous-variable optical systems has recently gained more attention due to its unique advantages and approaches. This review introduces several topics of recent experimental and theoretical progress in the optical continuous-variable quantum computation that we believe are promising. In particular, we focus on scaling-up technologies enabled by time multiplexing, bandwidth broadening, and integrated optics, as well as hardware-efficient and robust bosonic quantum error correction schemes.

29 pages, 18 figures

References in corpus (73)

• Supplementary information for "Quantum supremacy using a programmable superconducting processor"
• The Quantum Internet
• Variational Quantum Algorithms
• Surface codes: Towards practical large-scale quantum computation
• Photonic quantum technologies
• Quantum computational advantage using photons
• Integrated Photonic Quantum Technologies
• Silica-on-Silicon Waveguide Quantum Circuits
• Quantum walks of correlated particles
• Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency
• Universal Quantum Computation with Continuous-Variable Cluster States
• Fault-tolerant quantum computation with high threshold in two dimensions
• Topological fault-tolerance in cluster state quantum computation
• Generation of a superposition of odd photon number states for quantum information networks
• Quantum circuits with many photons on a programmable nanophotonic chip
• Hybrid quantum-classical algorithms and quantum error mitigation
• Observation of squeezed light with 10dB quantum noise reduction
• Shor's quantum factoring algorithm on a photonic chip
• A 2D Quantum Walk Simulation of Two-Particle Dynamics
• A four-qubit germanium quantum processor
• One-Way Quantum Computing in the Optical Frequency Comb
• Quantum walks on a programmable two-dimensional 62-qubit superconducting processor
• Fault-tolerant linear optical quantum computing with small-amplitude coherent states
• Blueprint for a Scalable Photonic Fault-Tolerant Quantum Computer
• Experimental demonstration of three-color entanglement
• Generation of large-amplitude coherent-state superposition via ancilla-assisted photon-subtraction
• Experimental generation of four-mode continuous-variable cluster states
• Perspective: Toward large-scale fault-tolerant universal photonic quantum computing
• Generation of one-million-mode continuous-variable cluster state by unlimited time-domain multiplexing
• Building Gaussian Cluster States by Linear Optics
• Detection loss tolerant supersensitive phase measurement with an SU(1,1) interferometer
• Quantum photonics at telecom wavelengths based on lithium niobate waveguides
• Generating superposition of up-to three photons for continuous variable quantum information processing
• High purity bright single photon source
• Scalable boson-sampling with time-bin encoding using a loop-based architecture
• Continuous variable entanglement on a chip
• Quantum Error Correction with the Gottesman-Kitaev-Preskill Code
• Improved magic states distillation for quantum universality
• Continuous-wave 6-dB-squeezed light with 2.5-THz-bandwidth from single-mode PPLN waveguide
• Demonstration of a quantum nondemolition sum gate
• 9~GHz measurement of squeezed light by interfacing silicon photonics and integrated electronics
• Analog quantum error correction with encoding a qubit into an oscillator
• Optimal and Efficient Decoding of Concatenated Quantum Block Codes
• Universal Quantum Computing with Measurement-Induced Continuous-Variable Gate Sequence in a Loop-Based Architecture
• A fault-tolerant continuous-variable measurement-based quantum computation architecture
• Demonstration of deterministic and high fidelity squeezing of quantum information
• Continuous-variable gate teleportation and bosonic-code error correction
• All-Optical Long-Distance Quantum Communication with Gottesman-Kitaev-Preskill qubits
• Arbitrarily Large Continuous-Variable Cluster States from a Single Quantum Nondemolition Gate
• Fault-tolerant quantum computation with static linear optics
• Quantum repeaters based on concatenated bosonic and discrete-variable quantum codes
• Generation of continuous-wave broadband Einstein-Podolsky-Rosen beams using periodically-poled lithium niobate waveguides
• Protecting an optical qubit against photon loss
• Experimentally feasible quantum erasure-correcting code for continuous variables
• All-optical phase-sensitive detection for ultra-fast quantum computation
• Nearly Deterministic Bell Measurement for Multiphoton Qubits and Its Application to Quantum Information Processing
• Experimental realization of a dynamic squeezing gate
• Franck-Condon factors by counting perfect matchings of graphs with loops
• Fast simulation of bosonic qubits via Gaussian functions in phase space
• Quantum computation and simulation with vibrational modes of trapped ions
• Continuous variable encoding by ponderomotive interaction
• Programmable and sequential Gaussian gates in a loop-based single-mode photonic quantum processor
• Boson-sampling with photons of arbitrary spectral structure
• Non-Clifford gate on optical qubits by nonlinear feedforward
• Cubic phase gates are not suitable for non-Clifford operations on GKP states
• Exact and approximate continuous-variable gate decompositions
• Demonstration of Cluster State Shaping and Quantum Erasure for Continuous Variables
• Highly photon loss tolerant quantum computing using hybrid qubits
• Phase-space methods for representing, manipulating, and correcting Gottesman-Kitaev-Preskill qubits
• Entanglement properties of optical coherent states under amplitude damping
• Polylog-overhead highly fault-tolerant measurement-based quantum computation: all-Gaussian implementation with Gottesman-Kitaev-Preskill code
• Hidden qubit cluster states
• Towards quantum simulation of spin systems using continuous variable quantum devices

Cited by in corpus (20)

• Over-8-dB squeezed light generation by a broadband waveguide optical parametric amplifier toward fault-tolerant ultra-fast quantum computers
• 43-GHz bandwidth real-time amplitude measurement of 5-dB squeezed light using modularized optical parametric amplifier with 5G technology
• On Physics-Informed Neural Networks for Quantum Computers
• Generation of Flying Logical Qubits using Generalized Photon Subtraction with Adaptive Gaussian Operations
• Analog quantum simulation of partial differential equations
• Holomorphic representation of quantum computations
• Information processing at the speed of light
• Energetics of a pulsed quantum battery
• Continuous-variable quantum approximate optimization on a programmable photonic quantum processor
• Creation of Two-Mode Squeezed States in Atomic Mechanical Oscillators
• Gaussian conversion protocol for heralded generation of qunaught states
• Sufficient condition for universal quantum computation using bosonic circuits
• Measurement-based quantum simulation of Abelian lattice gauge theories
• Analysis of loss correction with the Gottesman-Kitaev-Preskill code
• Efficient measurement schemes for bosonic systems
• A complete continuous-variable quantum computation architecture based on the 2D spatiotemporal cluster state
• Enhancing quantum exchanges between two oscillators
• Describing two-mode squeezed-light experiments without two-mode entanglement or squeezing
• A Three-Mode Erasure Code for Continuous Variable Quantum Communications
• Optical Quantum Computing