ArticleScience advances2018
Experimental two-dimensional quantum walk on a photonic chip.
Article in Science advances, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed.
- Thouless quantum walks in topological flat bands.Light, science & applications · 2026Article
- Programmable Three-dimensional Photonic Neural Network Chip.Nature communications · 2026Article
- Experimental revival of an unknown state from the past in quantum walks.National science review · 2025Article
- Multi-particle quantum walks on 3D integrated photonic chip.Light, science & applications · 2024Article
- Disease gene prioritization with quantum walks.Bioinformatics (Oxford, England) · 2024Article
- NOON-state interference in the frequency domain.Light, science & applications · 2024Article
- Link Prediction with Continuous-Time Classical and Quantum Walks.Entropy (Basel, Switzerland) · 2023Article
- Direct observation of quantum percolation dynamics.Nanophotonics (Berlin, Germany) · 2023Article
- Nanowire-based integrated photonics for quantum information and quantum sensing.Nanophotonics (Berlin, Germany) · 2023Review
- Advances in Chip-Based Quantum Key Distribution.Entropy (Basel, Switzerland) · 2022Review
- Exploring complex graphs using three-dimensional quantum walks of correlated photons.Science advances · 2021Article
- Transport Efficiency of Continuous-Time Quantum Walks on Graphs.Entropy (Basel, Switzerland) · 2021Article
- Femtosecond Laser Direct Writing of Integrated Photonic Quantum Chips for Generating Path-Encoded Bell States.Micromachines · 2020Article
- Quantum simulation of particle pair creation near the event horizon.National science review · 2020Article
- Quantum Walks in Periodic and Quasiperiodic Fibonacci Fibers.Scientific reports · 2020Article
- Measuring a dynamical topological order parameter in quantum walks.Light, science & applications · 2020Article
- Ultrafast Laser Writing Deep inside Silicon with THz-Repetition-Rate Trains of Pulses.Research (Washington, D.C.) · 2020Article
- A scalable photonic computer solving the subset sum problem.Science advances · 2020Article
- Multimaterial 3D Printing for Arbitrary Distribution with Nanoscale Resolution.Nanomaterials (Basel, Switzerland) · 2019Article
- Universal bound on sampling bosons in linear optics and its computational implications.National science review · 2019Article
Corrections and comments
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Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Quantum walks, in virtue of the coherent superposition and quantum interference, have exponential superiority over their classical counterpart in applications of quantum searching and quantum simulation. The quantum-enhanced power is highly related to the state space of quantum walks, which can be expanded by enlarging the photon number and/or the dimensions of the evolution network, but the former is considerably challenging due to probabilistic generation of single photons and multiplicative loss. We demonstrate a two-dimensional continuous-time quantum walk by using the external geometry of photonic waveguide arrays, rather than the inner degree of freedoms of photons. Using femtosecond laser direct writing, we construct a large-scale three-dimensional structure that forms a two-dimensional lattice with up to 49 × 49 nodes on a photonic chip. We demonstrate spatial two-dimensional quantum walks using heralded single photons and single photon-level imaging. We analyze the quantum transport properties via observing the ballistic evolution pattern and the variance profile, which agree well with simulation results. We further reveal the transient nature that is the unique feature for quantum walks of beyond one dimension. An architecture that allows a quantum walk to freely evolve in all directions and at a large scale, combining with defect and disorder control, may bring up powerful and versatile quantum walk machines for classically intractable problems.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.