A5087684911- Quantum and electron transport phenomena
- Photonic and Optical Devices
- Quantum many-body systems
- Quantum optics and atomic interactions
- Quantum chaos and dynamical systems
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum Information and Cryptography
- Photonic Crystals and Applications
- Neural Networks and Reservoir Computing
- Mechanical and Optical Resonators
- Quantum Computing Algorithms and Architecture
- Graphene research and applications
- Atomic and Subatomic Physics Research
- Optical Network Technologies
- Phase-change materials and chalcogenides
- Semiconductor Quantum Structures and Devices
- Force Microscopy Techniques and Applications
- Glass properties and applications
- Topological Materials and Phenomena
- Ocean Waves and Remote Sensing
- Magneto-Optical Properties and Applications
- Strong Light-Matter Interactions
- Molecular Junctions and Nanostructures
- Diverse Aspects of Tourism Research
- Evaluation Methods in Various Fields
Zhejiang University
2010-2025
Wenzhou Medical University
2023-2024
Zhejiang University of Technology
2023
Alibaba Group (China)
2022
University of Wisconsin–Madison
2017-2022
State Key Laboratory of Modern Optical Instruments
2022
Arizona State University
2012-2020
Sichuan International Studies University
2011-2013
Tulane University
2011-2012
Ningde Normal University
2007-2012
The spectral form factor (SFF) captures universal fluctuations as signatures of quantum chaos, and has been instrumental in advancing multiple frontiers physics including the studies black holes many-body systems. measurement SFF systems is however challenging due to difficulty resolving level spacings that become exponentially small with increasing system size. Here, we utilize random toolbox perform a direct experimental SFF, hence probe presence or absence chaos on superconducting...
We show optical waves passing through a nanophotonic medium can perform artificial neural computing. Complex information is encoded in the wavefront of an input light. The transforms to realize sophisticated computing tasks such as image recognition. At output, energy concentrated well-defined locations, which, for example, be interpreted identity object image. These media small tens wavelengths and offer ultra-high density. They exploit subwavelength scatterers complex input/output mapping...
Structural order beyond the next-nearest-neighbor structural units is of great interest in network glasses, especially chalcogenide but little specific description can be reached. Here, structure pseudobinary (100 – x)GeS2–xSb2S3 glasses elucidated using differential scanning calorimetry, Raman scattering, and laser-induced phase transformation experiments over its full range (0 ≤ x 100) compositions. We observe two compositional thresholds = 40 50 calorimetric experiments, which are...
Recent years have witnessed significant interest in nanoscale physical systems, such as nanoelectromechanical and optomechanical which can exhibit distinct collective dynamical behaviors, synchronization. As a parameter of the system changes, transition from one type emerging behavior to another occur. But what are quantum manifestations transition? We investigate two optically coupled cavities uncover phenomenon in-phase antiphase Quantum mechanically, we find that, associated with...
Wavelength determines the length scale of cross section when electromagnetic waves are scattered by an electrically small object. The diverges for resonant scattering, and diminishes non-resonant wavelength approaches infinity. This scattering law explains color sky as well strength a mobile phone signal. We show that such scaling comes from free space's conical dispersion at zero frequency. Emerging Weyl systems, offering similar non-zero frequencies, lead to new laws allow sections be...
We review recent progress in modeling the probability distribution of wave heights deep ocean as a function small number parameters describing local sea state. Both linear and nonlinear mechanisms rogue formation are considered. First, we show that when average steepness is effects subleading, height well explained by single "freak index" parameter, which describes strength (linear) scattering random currents relative to angular spread incoming sea. When large, takes very similar functional...
Gigahertz hard X-ray imaging for the proposed matter-radiation interaction in extreme project presents an unprecedented challenge to front imager both speed and radiation hardness. Novel fast scintillators are be developed face these challenges. This paper investigation on optical scintillation properties a set of inorganic scintillators. Transmittance, emission, light output, decay time were measured. Based this investigation, we plan take two approaches develop with subnanoseconds...
Historically, semiconductor superlattices, artificial periodic structures of different materials, were invented with the purpose engineering or manipulating electronic properties devices. A key application lies in generating radiation sources, amplifiers, and detectors ``unusual'' spectral range subterahertz terahertz (0.1--10 THz), which cannot be readily realized using conventional so-called THz gap. Efforts past three decades have demonstrated various nonlinear dynamical behaviors...
Emerging quantum technologies hold the promise of unravelling difficult problems ranging from condensed matter to high-energy physics while, at same time, motivating search for unprecedented phenomena in their setting. Here, we use a custom-built superconducting qubit ladder realize non-thermalizing states with rich entanglement structures middle energy spectrum. Despite effectively forming an "infinite" temperature ensemble, these robustly encode information far equilibrium, as demonstrate...
Disorder in one-dimensional (1D) many-body systems facilitates abundant phases such as localization (MBL) and thermalization. However, it remains unclear regarding their existence behavior within hybrid quantum systems. Here, based on a simple bosonic-spin model, known the Jaynes-Cummings-Hubbard (JCH) array, we investigate effect of disorder compared to phenomena clean system with variation atom-photon coupling strength. By using level-spacing ratio, entanglement entropy, properties...
The interaction between quantum two-level systems is typically short range in free space and most photonic environments. We show that diminishing momentum isosurfaces with equal frequencies can create a significantly extended of distant systems. robust does not rely on specific location or orientation the transition dipoles. A general relation properties isosurface described for structured media. It provides new way to mediate long-range behavior.
Complex dynamics associated with multistability have been studied extensively in the past but mostly for low-dimensional nonlinear dynamical systems. A question of fundamental interest is whether can arise high-dimensional physical Motivated by ever increasing widespread use nanoscale systems, we investigate a prototypical class nanoelectromechanical systems: electrostatically driven Si nanowires, mathematically described set driven, partial differential equations. We develop computationally...
An outstanding and fundamental problem in contemporary physics is to include probe the many-body effect study of relativistic quantum manifestations classical chaos. We address this using graphene systems described by Hubbard Hamiltonian setting resonant tunneling. Such a system consists two symmetric potential wells separated barrier, geometric shape whole domain can be chosen generate integrable or chaotic dynamics limit. Employing standard mean-field approach calculating large number...
Conductance fluctuations associated with transport through quantum-dot systems are currently understood to depend on the nature of corresponding classical dynamics, i.e., integrable or chaotic. However, we find that in graphene systems, when a magnetic field is present, signatures dynamics can disappear and universal scaling behaviors emerge. In particular, as Fermi energy flux varied, both regular oscillations random conductance occur, alternating transitions between two. By carrying out...
The classical radio-frequency antenna theory indicates that large cross sections can be realized through directional radiation. In this paper, a similar principle is applied in quantum systems, which antennas, constructed by cluster of two-level explore the collective excitation systems to realize directivity. Both optical section and coherent time dramatically enhanced free space, far exceeding case single system.
When graphene is placed on a substrate of heavy metal, the Rashba spin-orbit interaction substantial strength can occur. In an open system such as quantum dot, induce spin polarization. Would classical dynamics have any effect polarization? Here we consider quantum-dot setting, where confined within central scattering region whose geometrical shape be chosen to yield distinct types dynamics, e.g., regular or chaotic, in limit. We find that compared with mixed chaos lead significantly smooth...
Quantum sensing using Rydberg atoms is an emerging technology for precise measurement of electric fields. However, most existing computational methods are all based on a single-particle model and neglect Rydberg-Rydberg interaction between atoms. In this study, we introduce the term into conventional four-level optical Bloch equations. By incorporating fast iterations solving steady-state solution efficiently, avoid computation massive 4 N × dimensional matrix. Additionally, apply Doppler...
Nonhyperbolicity, as characterized by the coexistence of Kolmogorov-Arnold-Moser (KAM) tori and chaos in phase space, is generic classical Hamiltonian systems. An open but fundamental question physics concerns relativistic quantum manifestations nonhyperbolic dynamics. We choose mushroom billiard that has been mathematically proven to be nonhyperbolic, study resonant tunneling dynamics a massless Dirac fermion. find rate function energy exhibits striking ``clustering'' phenomenon, where...