48 citations · 208 across the 17 of their papers we have counts for
19 papers
Robust Unidirectional Edge States in the Continuum in non-Topological Floquet Photonic Crystals
Hairong Huo, Yongyou Zhang, Bingsuo Zou
Robust unidirectional edge propagation is conventionally attributed to topological protection. Whether edge states in the continuum (EICs) can exhibit such robustness in non-topolo…
Robust Preparation of Bell States by Time Boundary Effect
Jia-Nan Wu, Bingsuo Zou, Guojun Jin +1
Quantum entanglement is essential for modern quantum information processing. Entanglement gates convert initially non-entangled states into entangled ones by applying time-dependen…
Diffusion-Enhanced Optimization of Variational Quantum Eigensolver for General Hamiltonians
Shikun Zhang, Zheng Qin, Yongyou Zhang +4
Variational quantum algorithms (VQAs) have emerged as a promising approach for achieving quantum advantage on current noisy intermediate-scale quantum devices. However, their large…
Amortized Variational Inference for Deep Gaussian Processes
Qiuxian Meng, Yongyou Zhang
Gaussian processes (GPs) are Bayesian nonparametric models for function approximation with principled predictive uncertainty estimates. Deep Gaussian processes (DGPs) are multilaye…
Machine-Learning Insights into the Entanglement-trainability Correlation of Parameterized Quantum Circuits
Shikun Zhang, Yang Zhou, Zheng Qin +4
Variational quantum algorithms (VQAs) have emerged as the leading strategy to obtain quantum advantage on the current noisy intermediate-scale devices. However, their entanglement-…
Statistics of tens-of-photon states scattered by optical cavity, two-level atom and Jaynes-Cummings emitter
Jia-Nan Wu, Bingsuo Zou, and Yongyou Zhang
Manipulating photon states serves as a primary requirement for various optical devices and is of high relevance for quantum information technology. Nevertheless, the fundamental th…
Making Chiral Topological Superconductivities from Non-topological Superconductivities Through the Twist
Yu-Bo Liu, Jing Zhou, Yongyou Zhang +2
In this paper, we propose a general scheme to realize chiral TSCs through the "twistronics". Suppose we have a -symmetric monolayer superconductor, which carries non-topologic…
High-Angular-Momentum Topological Superconductivity in the Largest-Angle Twisted Homo-bilayer Systems
Yu-Bo Liu, Yongyou Zhang, Wei-Qiang Chen +1
We study the largest-angle twisted homo-bilayer (LA-THB) systems, hosting Moiréless quasi-crystal (QC) structure. We propose to use these materials to generate high-angular-momentu…
topological superconductivity in the 30-twisted bilayer graphene
Yu-Bo Liu, Yongyou Zhang, Wei-Qiang Chen +1
Based on our revised perturbational-band theory, we study possible pairing states driven by interaction in the electron-doped quasicrystal 30\degree-twisted bilayer graphene. Our m…
Exceptional points in a topological photonic system
Junhua Dong, Chang-Yin Ji, Qingmei Hu +2
Exceptional points as branch singularities describe peculiar degeneracies of non-Hermitian systems that do not obey energy conservation. This work shows that exceptional points can…
Topologically protected Fano resonance in photonic valley Hall insulators
Chang-Yin Ji, Yongyou Zhang, Bingsuo Zou +1
Rapidly developing photonics brings many interesting resonant optical phenomena, in which the Fano resonance (FR) always intrigues researchers because of its applications in optica…
Chiral SO(4) spin-valley density wave and degenerate topological superconductivity in magic-angle-twisted bilayer-graphene
Chen Lu, Yongyou Zhang, Yu Zhang +6
Starting from a realistic extended Hubbard model for a -orbital tight-binding model on the Honeycomb lattice, we perform a thorough investigation on the possible electron…
Cooper instability and superconductivity on the Penrose lattice
Yu-Bo Liu, Juan-Juan Hao, Yongyou Zhang +3
Bulk superconductivity (SC) has recently been observed in the Al-Zn-Mg quasicrystal (QC). To settle several fundamental issues of the SC on the QC, we use an attractive Hubbard mod…
Kohn-Luttinger mechanism driven exotic topological superconductivity on the Penrose lattice
Ye Cao, Yongyou Zhang, Yu-Bo Liu +3
The Kohn-Luttinger mechanism for unconventional superconductivity (SC) driven by weak repulsive electron-electron interactions on a periodic lattice is generalized to the quasicrys…
Transport tuning of photonic topological edge states by optical cavities
Chang-Yin Ji, Gui-Bin Liu, Yongyou Zhang +2
Crystal-symmetry-protected photonic topological edge states (PTESs) based on air rods in conventional dielectric materials are designed as photonic topological waveguides (PTWs) co…
Excitation of exciton-polariton vortices in pillar microcavities by a Gaussian beam
A. S. Abdalla, Bingsuo Zou, Yuan Ren +2
With coupled Gross-Piteavskii equations we study excitation of exciton-polariton vortices and antivortices in a pillar microcavity by a Gaussian pump beam. The structure of vortice…
Suppression of space broadening of exciton polariton beams by Bloch oscillation effects
Xudong Duan, Bingsuo Zou, Yongyou Zhang
We theoretically study the transport of exciton polaritons under different applied photon potentials. The relation between the photon potentials and the thickness of the cavity lay…
Transmission comb of a distributed Bragg reflector induced by two surface dielectric gratings
Xiaobo Zhao, Bingsuo Zou, Yongyou Zhang
With transfer matrix theory, we study the transmission of a distributed Bragg reflector (DBR) with two dielectric gratings on top and on the bottom. Owing to the diffraction of the…
Nonlocal coupling effects on single-photon transmission in a one-dimensional waveguide interacted with a side optical cavity
Yongyou Zhang, Bingsuo Zou
The nonlocal coupling effect between a one-dimensional waveguide (1DW) and a side optical cavity (SOC) is studied. We first find the real-space Hamiltonian of the nonlocal-coupling…