Resource-efficient photonic quantum computation with high-dimensional cluster states
arXiv:2309.10464 · doi:10.1038/s41566-024-01524-w
Abstract
Quantum computers can revolutionize science and technology, but their realization remains challenging across all platforms. A promising route to scalability is photonic measurement-based quantum computation, where single-qubit measurements on large cluster states, together with feedforward, enable fault-tolerant quantum computation. However, generating large cluster states at high rates is notoriously difficult, as detection probabilities drop exponentially with the number of photons comprising the state. We tackle this challenge by encoding multiple qubits on each photon through high-dimensional spatial encoding, generating cluster states with over nine qubits at a rate of 100Hz. Additionally, we demonstrate that high-dimensional encoding substantially reduces the computation duration by enabling instantaneous feedforward between qubits encoded in the same photon. Our findings pave the way for resource-efficient measurement-based quantum computation using high-dimensional entanglement.
Nat. Photon. (2024)
References in corpus (14)
- Entanglement detection
- Resource-efficient linear optical quantum computation
- Topological fault-tolerance in cluster state quantum computation
- Efficient and mode selective spatial mode multiplexer based on Multi-Plane Light Conversion
- High-speed linear optics quantum computing using active feed-forward
- Detecting Genuine Multipartite Entanglement with Two Local Measurements
- Resonant Semiconductor Metasurfaces for Generating Complex Quantum States
- Experimental demonstration of topological error correction
- Realization and characterization of a 2-photon 4-qubit linear cluster state
- Experimental Entanglement and Nonlocality of a Two-Photon Six-Qubit Cluster State
- Asymptotic Improvements to Quantum Circuits via Qutrits
- Active one-way quantum computation with 2-photon 4-qubit cluster states
- Inverse-design of high-dimensional quantum optical circuits in a complex medium
- Photonic source of heralded GHZ states
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