Quantum Walk Computing: Theory, Implementation, and Application

X Qiang, S Ma, H Song - Intelligent Computing, 2024 - spj.science.org
The classical random walk formalism plays an important role in a wide range of applications.
Its quantum counterpart, the quantum walk, is proposed as an important theoretical model …

Efficient learning of mixed-state tomography for photonic quantum walk

QQ Wang, S Dong, XW Li, XY Xu, C Wang, S Han… - Science …, 2024 - science.org
Noise-enhanced applications in open quantum walk (QW) has recently seen a surge due to
their ability to improve performance. However, verifying the success of open QW is …

Topological quantum walks in momentum space with a Bose-Einstein condensate

D **e, TS Deng, T **ao, W Gou, T Chen, W Yi, B Yan - Physical Review Letters, 2020 - APS
We report the experimental implementation of discrete-time topological quantum walks of a
Bose-Einstein condensate in momentum space. Introducing stroboscopic driving sequences …

1D photonic topological insulators composed of split ring resonators: a mini review

Z Guo, Y Wang, S Ke, X Su, J Ren… - Advanced Physics …, 2024 - Wiley Online Library
In recent years, topological photonics inspired by electric topological insulators has
promoted extensive research on robust electromagnetic (EM) wave manipulation and new …

Photonic quantum walk with ultrafast time-bin encoding

KL Fenwick, F Bouchard, GS Thekkadath, D England… - Optica, 2024 - opg.optica.org
The quantum walk (QW) has proven to be a valuable testbed for fundamental inquiries in
quantum technology applications such as quantum simulation and quantum search …

Digital simulation of topological matter on programmable quantum processors

F Mei, Q Guo, YF Yu, L **ao, SL Zhu, S Jia - Physical Review Letters, 2020 - APS
Simulating the topological phases of matter in synthetic quantum simulators is a topic of
considerable interest. Given the universality of digital quantum simulators, the prospect of …

Observation of topological bound states in a double Su-Schrieffer-Heeger chain composed of split ring resonators

Z Guo, J Jiang, H Jiang, J Ren, H Chen - Physical Review Research, 2021 - APS
The observation of abundant topological properties in optical platforms has attracted
people's attention due to their great advantages in fundamental topological research and …

Measuring a dynamical topological order parameter in quantum walks

XY Xu, QQ Wang, M Heyl, JC Budich… - Light: Science & …, 2020 - nature.com
Quantum processes of inherent dynamical nature, such as quantum walks, defy a
description in terms of an equilibrium statistical physics ensemble. Until now, identifying the …

[HTML][HTML] Simulation of higher-order topological phases and related topological phase transitions in a superconducting qubit

J Niu, T Yan, Y Zhou, Z Tao, X Li, W Liu, L Zhang, H Jia… - Science Bulletin, 2021 - Elsevier
Higher-order topological phases give rise to new bulk and boundary physics, as well as new
classes of topological phase transitions. While the realization of higher-order topological …

[HTML][HTML] Topological Anderson insulators induced by random binary disorders

SN Liu, GQ Zhang, LZ Tang, DW Zhang - Physics Letters A, 2022 - Elsevier
Different disorders lead to various localization and topological phenomena in condensed
matter and artificial systems. Here we study the topological and localization properties in …