Publications (43)
Second-Harmonic Generation in Etchless Lithium Niobate Nanophotonic Waveguides with Bound States in the Continuum
Fan Ye, Yue Yu, Xiang Xi +1
Bound states in the continuum (BICs) have been extensively studied in various systems since its first proposal in quantum mechanics. Photonic BICs can enable optical mode confineme…
Guts of nearly fibered knots
Zhenkun Li, Fan Ye
The guts of a knot is an invariant defined for the knot complement by Agol-Zhang. Nearly fibered knots, which are defined as knots whose Floer homology has dimension two in the top…
Impact of Zr substitution on the electronic structure of ferroelectric hafnia
Jinhai Huang, Ge-Qi Mao, Kan-Hao Xue +4
-based dielectrics are promising for nanoscale ferroelectric applications, and the most favorable material within the family is Zr-substituted hafnia, i.e., $\mathr…
STS MICCAI 2023 Challenge: Grand challenge on 2D and 3D semi-supervised tooth segmentation
Yaqi Wang, Yifan Zhang, Xiaodiao Chen +24
Computer-aided design (CAD) tools are increasingly popular in modern dental practice, particularly for treatment planning or comprehensive prognosis evaluation. In particular, the…
Embedded metal nanopatterns for near-field scattering-enhanced optical absorption
Fan Ye, Michael J. Burns, Michael J. Naughton
Simulations of metal nanopatterns embedded in a thin photovoltaic absorber show significantly enhanced absorbance within the semiconductor, with a more than 300% increase for λ =…
Solving the Dual Problems of Dynamic Programs via Regression
Helin Zhu, Fan Ye, Enlu Zhou
In recent years, information relaxation and duality in dynamic programs have been studied extensively, and the resulted primal-dual approach has become a powerful procedure in solv…
Shell DFT-1/2 method towards engineering accuracy for semiconductors: GGA versus LDA
Hanli Cui, Shengxin Yang, Jun-Hui Yuan +5
The Kohn-Sham gaps of density functional theory (DFT) obtained in terms of local density approximation (LDA) or generalized gradient approximation (GGA) cannot be directly linked t…
Integrated electro-optic digital-to-analog link for efficient computing and arbitrary waveform generation
Yunxiang Song, Yaowen Hu, Xinrui Zhu +13
The rapid growth in artificial intelligence and modern communication systems demands innovative solutions for increased computational power and advanced signaling capabilities. Int…
Weakly Coupled Dynamic Program: Information and Lagrangian Relaxations
Fan Ye, Helin Zhu, Enlu Zhou
"Weakly coupled dynamic program" describes a broad class of stochastic optimization problems in which multiple controlled stochastic processes evolve independently but subject to a…
Instanton Floer homology, sutures, and Euler characteristics
Zhenkun Li, Fan Ye
This is a companion paper to an earlier work of the authors. In this paper, we provide an axiomatic definition of Floer homology for balanced sutured manifolds and prove that the g…
Design and Verification of the JUNO Liquid Filling Control System
Jiajun Li, Yuekun Heng, Tao Huang +7
Jiangmen Underground Neutrino Observatory (JUNO) is a large-scale neutrino experiment with multiple physics goals including neutrino mass hierarchy, accurate measurement of neutrin…
Instanton Floer homology, sutures, and Heegaard diagrams
Zhenkun Li, Fan Ye
This paper establishes a new technique that enables us to access some fundamental structural properties of instanton Floer homology. As an application, we establish, for the first…
Online Detection of Low-Quality Synchrophasor Data Considering Frequency Similarity
Wenyun Ju, Horacio Silva-Saravia, Neeraj Nayak +4
This letter proposes a new approach for online detection of low-quality synchrophasor data under both normal and event conditions. The proposed approach utilizes the features of sy…
SU(2) representations and a large surgery formula
Zhenkun Li, Fan Ye
A knot is called -abundant if it satisfies two conditions: first, for all but finitely many , there exists an irreducible repre…
Instanton 2-torsion and Dehn surgeries
Zhenkun Li, Fan Ye
In our earlier work on -torsion in instanton Floer homology, we considered only integral surgeries on a knot and showed that the absence of -torsion forces …
Environmental Instability and Degradation of Single- and Few-Layer WTe2 Nanosheets in Ambient Conditions
Fan Ye, Jaesung Lee, Jin Hu +3
Since the discovery of large, non-saturating magnetoresistance in bulk WTe2 which allows microexfoliation, single- and few-layer WTe2 crystals have attracted increasing interests.…
Singular instanton homology of dual knots
Fan Ye
We establish a dimension formula for the unreduced singular instanton homology of dual knots for a knot : $$ \dim I^\sharp(S…
Atomic Layer MoS2-Graphene van der Waals Heterostructure Nanomechanical Resonators
Fan Ye, Jaesung Lee, Philip X. -L. Feng
Heterostructures play significant roles in modern semiconductor devices and micro/nanosystems in a plethora of applications in electronics, optoelectronics, and transducers. While…
Reconstructing MODIS Normalized Difference Snow Index Product on Greenland Ice Sheet Using Spatiotemporal Extreme Gradient Boosting Model
Fan Ye, Qing Cheng, Weifeng Hao +1
The spatiotemporally continuous data of normalized difference snow index (NDSI) are key to understanding the mechanisms of snow occurrence and development as well as the patterns o…
GFTE: Graph-based Financial Table Extraction
Yiren Li, Zheng Huang, Junchi Yan +3
Tabular data is a crucial form of information expression, which can organize data in a standard structure for easy information retrieval and comparison. However, in financial indus…
Multi-terminal electrical transport measurements of molybdenum disulphide using van der Waals heterostructure device platform
Xu Cui, Gwan-Hyoung Lee, Young Duck Kim +15
Atomically thin two-dimensional (2D) semiconductors such as molybdenum disulphide (MoS2) hold great promise in electrical, optical, and mechanical devices and display novel physica…
Identification and classification of exfoliated graphene flakes from microscopy images using a hierarchical deep convolutional neural network
Soroush Mahjoubi, Fan Ye, Yi Bao +2
Identification of the mechanically exfoliated graphene flakes and classification of the thickness is important in the nanomanufacturing of next-generation materials and devices tha…
Ultrawide Frequency Tuning of Atomic Layer van der Waals Heterostructure Electromechanical Resonators
Fan Ye, Arnob Islam, Teng Zhang +1
We report on the experimental demonstration of atomically thin molybdenum disulfide (MoS2)-graphene van der Waals (vdW) heterostructure nanoelectromechanical resonators with ultraw…
Single- and Few-Layer WTe2 and Their Suspended Nanostructures: Raman Signatures and Nanomechanical Resonances
Jaesung Lee, Fan Ye, Zenghui Wang +5
Single crystal tungsten ditelluride (WTe2) has recently been discovered to exhibit non-saturating extreme magnetoresistance in bulk; it has also emerged as a new layered material f…
Gemini 2.5: Pushing the Frontier with Advanced Reasoning, Multimodality, Long Context, and Next Generation Agentic Capabilities
Gheorghe Comanici, Eric Bieber, Mike Schaekermann +3431
In this report, we introduce the Gemini 2.X model family: Gemini 2.5 Pro and Gemini 2.5 Flash, as well as our earlier Gemini 2.0 Flash and Flash-Lite models. Gemini 2.5 Pro is our…
Knot surgery formulae for instanton Floer homology II: applications
Zhenkun Li, Fan Ye
This is a companion paper to earlier work of the authors, which proved an integral surgery formula for framed instanton homology. First, we present an enhancement of the large surg…
Sutured instanton homology and Heegaard diagrams
John A. Baldwin, Zhenkun Li, Fan Ye
Suppose H is an admissible Heegaard diagram for a balanced sutured manifold (M,γ). We prove that the number of generators of the associated sutured Heegaard Floer complex is an up…
Information Relaxation and Dual Formulation of Controlled Markov Diffusions
Fan Ye, Enlu Zhou
Information relaxation and duality in Markov decision processes have been studied recently by several researchers with the goal to derive dual bounds on the value function. In this…
2-torsion in instanton Floer homology
Zhenkun Li, Fan Ye
This paper studies the existence of -torsion in instanton Floer homology with coefficients for closed -manifolds and singular knots. First, we show that the non-…
Very High Interfacial Thermal Conductance in Fully hBN-Encapsulated MoS2 van der Waals Heterostructure
Fan Ye, Qingchang Liu, Baoxing Xu +2
We report experimental and computational studies of thermal transport properties in hexagonal boron nitride (hBN) encapsulated molybdenum disulfide (MoS2) structure using refined o…
An infinity-categorical TQFT from instantons
Fan Ye
In this paper, we upgrade the instanton TQFT from ordinary categories to a functor from an -cobordism category for instantons to an -derived cate…
Deep Imaging in Scattering Media with Single Photon Selective Plane Illumination Microscopy (SPIM)
Adithya Kumar Pediredla, Shizheng Zhang, Ben Avants +6
In most biological tissues, light scattering due to small differences in refractive index limits the depth of optical imaging systems. Two-photon microscopy (2PM), which significan…
Instanton dimensions of knot surgeries over arbitrary fields
Zhenkun Li, Fan Ye
Suppose is a knot and suppose and are co-prime integers with . For any field , we establish a dimension formula for the framed instanton…
A simple Python code for computing effective properties of 2D and 3D representative volume element under periodic boundary conditions
Fan Ye, Hu Wang
Multiscale optimization is an attractive research field recently. For the most of optimization tools, design parameters should be updated during a close loop. Therefore, a simple P…
PromptEM: Prompt-tuning for Low-resource Generalized Entity Matching
Pengfei Wang, Xiaocan Zeng, Lu Chen +4
Entity Matching (EM), which aims to identify whether two entity records from two relational tables refer to the same real-world entity, is one of the fundamental problems in data m…
Fast Estimation of True Bounds on Bermudan Option Prices under Jump-diffusion Processes
Helin Zhu, Fan Ye, Enlu Zhou
Fast pricing of American-style options has been a difficult problem since it was first introduced to financial markets in 1970s, especially when the underlying stocks' prices follo…
An enhanced Euler characteristic of sutured instanton homology
Zhenkun Li, Fan Ye
For a balanced sutured manifold , we construct a decomposition of with respect to torsions in , which generalizes the decomposition of $I^\…
Knot surgery formulae for instanton Floer homology I: the main theorem
Zhenkun Li, Fan Ye
We prove an integral surgery formula for framed instanton homology for any knot in a -manifold with and . Though…
Constrained knots in lens spaces
Fan Ye
In this paper, we study a special family of knots called constrained knots, which includes 2-bridge knots in the 3-sphere and simple knots in lens spaces. Constrained…
Monopole triangle over integers
Haochen Qiu, Fan Ye
We prove the surgery exact triangle for monopole (Seiberg--Witten) Floer homology over integer coefficients, extending the work of Kronheimer--Mrowka--Ozsváth--Szabó over $\mathb…
Small Dehn surgery and SU(2)
John A. Baldwin, Zhenkun Li, Steven Sivek +1
We prove that the fundamental group of 3-surgery on a nontrivial knot in the 3-sphere always admits an irreducible SU(2)-representation. This answers a question of Kronheimer and M…
Disconnection-Mediated Twin/Twin-Junction Migration in FCC metals
Mingjie Xu, Kongtao Chen, Fan Cao +7
We present the results of novel, time-resolved, in situ HRTEM observations, molecular dynamics (MD) simulations, and disconnection theory that elucidate the mechanism by which the…
Instanton 2-torsion and fibered knots
Deeparaj Bhat, Zhenkun Li, Fan Ye
We prove that the unreduced singular instanton homology has -torsion for any null-homologous fibered knot of genus in a closed -manifold…