Efficient quantum computing using coherent photon conversion

Abstract

Single photons provide excellent quantum information carriers, but current schemes for preparing, processing and measuring them are inefficient. For example, down-conversion provides heralded, but randomly timed single photons, while linear-optics gates are inherently probabilistic. Here, we introduce a deterministic scheme for photonic quantum information. Our single, versatile process---coherent photon conversion---provides a full suite of photonic quantum processing tools, from creating high-quality heralded single- and multiphoton states free of higher-order imperfections to implementing deterministic multiqubit entanglement gates and high-efficiency detection. It fulfils all requirements for a scalable photonic quantum computing architecture. Using photonic crystal fibres, we experimentally demonstrate a four-colour nonlinear process usable for coherent photon conversion and show that current technology provides a feasible path towards deterministic operation. Our scheme, based on interacting bosonic fields, is not restricted to optical systems, but could also be implemented in optomechanical, electromechanical and superconducting systems which exhibit extremely strong intrinsic nonlinearities.

12 pages, 9 figures

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Cited by in corpus (64)

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• Engineering a Kerr-based Deterministic Cubic Phase Gate via Gaussian Operations
• Cavity-free nondestructive detection of a single optical photon
• Triggered single photon emitters based on stimulated parametric scattering in weakly nonlinear systems
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• Qudit-Basis Universal Quantum Computation using ${\chi }^{(2)}$ Interactions
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• Hardware-Efficient Bosonic Quantum Error-Correcting Codes Based on Symmetry Operators
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• Coherent control of a qubit is trap-free
• Interaction of Independent Single Photons based on Integrated Nonlinear Optics
• Quantum interference between two single photons of different microwave frequencies
• Loophole-free Bell test based on local precertification of photon's presence
• Single photon frequency conversion for frequency multiplexed quantum networks in the telecom band
• Conditional $\pi$-Phase Shift of Single-Photon-Level Pulses at Room Temperature
• Photonic Nonlinearities via Quantum Zeno Blockade
• Ultratunable quantum frequency conversion in photonic crystal fiber
• Multiplying and detecting propagating microwave photons using inelastic Cooper-pair tunneling
• All-optical quantum computing using cubic phase gates
• Generation of photons with all-optically reconfigurable entanglement in integrated nonlinear waveguides
• Mesoscopic ultrafast nonlinear optics -- The emergence of multimode quantum non-Gaussian physics
• Efficient frequency conversion based on resonant four-wave mixing
• Information processing at the speed of light
• Non-reciprocal geometric phase in nonlinear frequency conversion
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• Synthetic five-wave mixing in an integrated microcavity for visible-telecom entanglement generation
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• Converting one photon into two via four-wave mixing in optical fibers
• Continuous generation of Rubidium vapor in hollow-core photonic band-gap fibers
• Bragg-Scattering conversion at telecom wavelengths towards the photon counting regime
• Dissipation-driven formation of entangled dark states in strongly-coupled inhomogeneous many-qubit systems in solid-state nanocavities
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• Analytical results for a conditional phase shift between single-photon pulses in a nonlocal nonlinear medium
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• Microstructured optical fibres for quantum applications: perspective
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• Fourier processing of quantum light
• Entangled Photon Resonance Energy Transfer in Arbitrary Media
• Loss-tolerant transmission of multiphoton-qubit information via hybrid entanglement
• Generation of entangled photons via parametric down-conversion in semiconductor lasers and integrated quantum photonic systems
• Measurement of the mechanical reservoir spectral density in optomechanical system
• Wave-Shape-Tolerant Photonic Quantum Gates
• Few-photon transport via a multimode nonlinear cavity: theory and applications
• Strong coupling between a single-photon and a two-photon Fock state
• Digital Discovery of a Scientific Concept at the Core of Experimental Quantum Optics
• Complete conversion between one and two photons in nonlinear waveguides with tailored dispersion
• Strong Nonlinear Coupling due to Induced Photon Interaction on a Si${}_3$N${}_4$ Chip
• Quantum and classical control of single photon states via a mechanical resonator
• A 16-pixel NbN nanowire single photon detector coupled with 300 micrometer fiber
• Automated Discovery of Non-local Photonic Gates
• Low-dimensional platforms for single photon detection