Controllable excitation transmission and topological switch based on an imaginary topological channel in a non-Hermitian Su-Schrieffer-Heeger chain

L Qi, N Han, S Liu, HF Wang, AL He - Physical Review A, 2023 - APS
We show the controllable excitation transmission can be implemented based on the
topologically protected edge channel in the modulated Su-Schrieffer-Heeger model with …

Engineering a phase-robust topological router in a dimerized superconducting-circuit lattice with long-range hopping and chiral symmetry

LN Zheng, X Yi, HF Wang - Physical Review Applied, 2022 - APS
We propose a scheme to implement the phase-robust topological router based on a one-
dimensional dimerized superconducting circuit lattice with long-range hopping. We show …

Engineering the unidirectional topological excitation transmission and topological diode in the Rice-Mele model

L Qi, N Han, S Hu, AL He - Physical Review A, 2023 - APS
We show how to implement the unidirectional topological excitation transmission in the Rice-
Mele model. We find that the unidirectional excitation transmissions can be implemented via …

Engineering quantum diode in one-dimensional time-varying superconducting circuits

X Zhao, Y Xing, J Cao, S Liu, WX Cui… - npj Quantum …, 2023 - nature.com
A potential application, quantum diode based on the adiabatic pumping between two
specific left and right edge modes, is explored in a one-dimensional cyclically modulated …

Determination of quantum toric error correction code threshold using convolutional neural network decoders

HW Wang, YJ Xue, YL Ma, N Hua, HY Ma - Chinese Physics B, 2022 - iopscience.iop.org
Quantum error correction technology is an important solution to solve the noise interference
generated during the operation of quantum computers. In order to find the best syndrome of …

Fast quantum transfer mediated by topological domain walls

J Zurita, CE Creffield, G Platero - Quantum, 2023 - quantum-journal.org
The duration of bidirectional transfer protocols in 1D topological models usually scales
exponentially with distance. In this work, we propose transfer protocols in multidomain SSH …

Chiral quantum router with Rydberg atoms

NE Palaiodimopoulos, S Ohler, M Fleischhauer… - Physical Review A, 2024 - APS
We exploit controlled breaking of time-reversal symmetry to realize coherent routing of
quantum information in spin networks. The key component of our scheme is a spin triangle …

Shortcut engineering for accelerating topological quantum state transfers in optomechanical lattices

JK Guo, JL Wu, J Cao, S Zhang, SL Su - Physical Review A, 2024 - APS
We propose several schemes with diverse optional types of couplings to accelerate
adiabatic topological quantum state transfers (QSTs) in optomechanical lattices (OMLs) by …

Topological phases of tight-binding trimer lattice in the BDI symmetry class

M Ghuneim, RW Bomantara - Journal of Physics: Condensed …, 2024 - iopscience.iop.org
In this work, we theoretically study a modified Su-Schrieffer-Heeger (SSH) model in which
each unit cell consists of three sites. Unlike existing extensions of the SSH model which are …

Small admixture of nonadiabaticity facilitating topologically protected splitters and routers via optimizing coupling engineering

JN Zhang, JL Wu, JX Han, S Tang, J Song, YY Jiang - Physical Review B, 2024 - APS
We propose to implement fast and robust quantum state transfer in symmetrical beam
splitters and routers through a specific topological edge channel in splicing Su-Schrieffer …