State Key Laboratory of Surface Physics

Spatiotemporal topological combs for robust high-dimensional information transmission

Abstract Time-varying orbital angular momentum (OAM) beams are fascinating due to their rich physics and essentially unbounded degrees of freedom. Yet, despite this promise, their practical use in high-capacity communication has not been demonstrated. We introduce a spatiotempora...

Flat Chern bands and correlated states in spiral magnet

Flat topological bands provide a promising platform for realizing exotic correlated quantum phases such as fractional Chern insulators. Here, we predict the van der Waals monolayer ReAg 2 Cl 6 hosts isolated flat Chern bands at the Fermi level in its 120 ∘ antiferromagnetic groun...

From microstructure to function: spatial visualization of magnetic permeability

Understanding the physics of high-frequency magnetic response is essential for advancing electromagnetic materials. Here, a general strategy is presented for visualizing magnetic permeability as a spatially distributed, frequency-dependent field, instead of a uniform bulk paramet...

Wave vortices around oscillating subwavelength holes: Water-wave observation

We consider a two-dimensional wave system containing a subwavelength hole, such as an aperture in an interface supporting surface electromagnetic or acoustic waves or an island in a fluid surface sustaining gravity-capillary waves. Recent studies have revealed the emergence of pr...

Plasmonic Au/Si Microcone Diode Arrays for Superior Photodetection of Near‐Infrared Light

ABSTRACT Plasmonic‐enhanced Schottky photodetector is of great interest for on‐chip silicon photonics thanks to fascinating sub‐bandgap photodetection and high tunability in near‐infrared (NIR) wavelength. Here, a promising Schottky photodetector based on Au/Si microcone diode ar...

Weak Superconducting Anisotropy in 4 H b ‐Nb 0.95 Ti 0.05 Se 2 With 1 T /1 H Heterostructure

ABSTRACT Heterostructures of layered transition metal dichalcogenide (TMD) exhibit rich physical properties by the combination of strong electronic correlation effects in 1 T layer and superconductivity in 1 H layer. But the limited number of bulk TMD materials with such heterost...

Wafer-scale low-symmetry graphene moiré superlattice for integrated quantum rectifiers

Low-symmetry materials unlock rich Berry curvature physics and anomalous transport phenomena that are forbidden in high-symmetry quantum systems through rigorous crystalline symmetry constraints. Current approaches rely on external fields or complex heterogeneous stacking to brea...

Entanglement-induced resilience of quantum dynamics

Quantum many-body devices suffer from imperfections that destabilize dynamics and limit scalability. We show that the dynamical growth of entanglement can intrinsically protect generic quantum dynamics against coherent noise and local perturbative noise. Through rigorous theoreti...

Unveiling non-Hermitian band structures with non-Bloch supercells

Abstract Real-valued band structures underpin the analysis of periodic Hermitian systems and are well established experimentally. By contrast, non-Hermitian systems feature complex band structures, in which energy and momentum acquire imaginary parts, enabling phenomena that defy...

Large-scale array of squeezed light and synchronization using atomic vapor

Abstract Quantum light sources such as squeezed light are essential for quantum information science and technologies, but the scalable production of multiple beams of them remains a challenge. Here, we experimentally demonstrate a novel approach to the generation of a large spati...