A5100457558- Quantum Information and Cryptography
- Neural Networks and Reservoir Computing
- Photonic and Optical Devices
- Optical Network Technologies
- Advanced Fiber Laser Technologies
- Quantum Mechanics and Non-Hermitian Physics
- Topological Materials and Phenomena
- Quantum optics and atomic interactions
- Advanced Data Compression Techniques
- Nonlinear Photonic Systems
- Electrokinetic Soil Remediation Techniques
- Advanced Thermodynamics and Statistical Mechanics
- Semiconductor materials and devices
- Transgenic Plants and Applications
- Software Engineering Techniques and Practices
- Marine Sponges and Natural Products
- Nonlinear Optical Materials Studies
- Open Source Software Innovations
- RNA modifications and cancer
- Signaling Pathways in Disease
- Sesquiterpenes and Asteraceae Studies
- Dental Education, Practice, Research
- Metabolism, Diabetes, and Cancer
- Software Engineering Research
- Image and Video Quality Assessment
Peking University
2011-2024
Peking University First Hospital
2020
Beijing Chest Hospital
2020
The University of Texas at Austin
2019
Institute of Genetics and Developmental Biology
2014
Beijing Hospital
2014
State Key Laboratory of Plant Genomics
2014
Institute of Software
2013
University of Science and Technology of China
2013
The quantum Toffoli gate is one of the most important three-qubit gates, but it challenging to construct a chip according complicated traditional circuit. Using optimized 3D configuration with an overpass waveguide reduce circuit complexity, we successfully fabricate on-chip path encoded photonic enabled by capability femtosecond laser direct writing (FLDW) for first time our knowledge, whose truth-table fidelity higher than 85.5%. Furthermore, four-qubit controlled-controlled-controlled NOT...
Anomalous Floquet topological insulators with vanishing Chern numbers but supporting chiral edge modes are attracting more and attention. Since the existing anomalous usually support only one kind of mode even at a large lattice size, they unscalable unapplicable for multistate quantum systems. Recently, fractal self-similarity have been explored to nontrivial modes. Here, we demonstrate first experimental realization photonic based on dual Sierpinski carpet consisting directional couplers...
Dynamically encircling exceptional points (EEPs) in non-Hermitian systems have been utilized to realize robust on-chip mode conversions by taking the advantage that output states are usually fixed and independent of input states. This highly protects one specific eigenstates, but restricts their practical applications requiring superposition Here, we an eigenstate generator using a depth-varying 3D waveguide overpass EEP system. It not only preserves robustness system generate determinate...
Optical neural network (ONN) is a neuromorphic computing hardware based on optical components. Since its first on-chip experimental demonstration, it has attracted more and research interests due to the advantages of ultra-high speed inference with low power consumption. In this work, we design novel slimmed architecture for realizing considering both software implementations. Different from originally proposed ONN singular value decomposition which results in two implementation-expensive...
Higher-order topological insulators have attracted great interest for their unconventional bulk-boundary correspondence especially gapless corner states. Here, we realize biphoton states in two-dimensional lattices. In addition to the striking state localization, correlations topologically nontrivial cases are more than 60 times higher those trivial and visibility of Hong-Ou-Mandel interference output corner-entangled is 90.3%. We confirm that second-order photonic support stable can...
Femtosecond lasers enable three-dimensional direct writing of waveguides inside bulk transparent materials and have been applied to the fabrication integrated photonic quantum logic gates. Up now, controlled-NOT (CNOT) gate, key two-qubit has realized only for polarization-encoded qubits, which consists three partially polarizing directional couplers (DCs) or two DCs. In this work, we demonstrate femtosecond laser a path-encoded CNOT gate formed by five DCs all with precisely controlled...
We report a state-independent experimental test of quantum contextuality single-photon qutrit. The results demonstrate violations an inequality originally formulated by Yu and Oh [Phys. Rev. Lett. 108, 030402 (2012)] further optimized Cabello et al. A 85, 032108 (2012)]; this is satisfied all noncontextual hidden variable models violated qutrit states. Our experiment shows nature in most fundamental way: way that independent state unrelated to entanglement.
Integrated photonic quantum chip provides a promising platform to perform computation, simulation, metrology and communication. Femtosecond laser direct writing (FLDW) is potential technique fabricate various integrated chips in glass. Several logic gates fabricated by FLDW have been reported, such as polarization path encoded controlled-NOT (CNOT) gates. By combining several single qubit two gates, the circuit can realize different functions, generating entangled states performing...
Fbx4 is a specific substrate recognition component of SCF ubiquitin ligases that catalyzes the ubiquitination and subsequent degradation cyclin D1 Trx1. Two isoforms human protein, full length Fbx4α C-terminal truncated Fbx4β have been identified, but their functions remain elusive. In this study, we demonstrated mRNA level was significantly lower in hepatocellular carcinoma tissues than corresponding non-tumor tissues. More importantly, identified three novel splicing variants Fbx4: Fbx4γ...
Reversible phosphorylation has a critical role in the regulation of activity acetyl‑CoA carboxylase 1 (ACC1), which is associated with de novo lipogenesis. It been shown that AMP‑activated protein kinase (AMPK) phosphorylates ACC1 on serine 79 and inhibits its activity; however, mechanism dephosphorylation remains elusive. Protein phosphatase 4 (PP4), ubiquitous serine/threonine phosphatase, regulates variety cellular functions; whether PP4 involved lipid metabolism yet to be elucidated. In...
In the paper, random telegraph noise (RTN) in high-k/metal-gate MOSFETs is investigated. The RTN high-k found different compared to that SiON MOSFETs, and faces challenges characterization. Therefore, characterization method improved based on clustering Hidden Markov Model, which greatly enhances ability extract with non-negligible “ghost noise” MOSFETs. signal devices fabricated by two SiO 2 /HfO stack processes formation methods are compared. It real originates from oxide defects HfO...
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The consistent video quality and encoding latency due to buffering are two important aspects in designing rate control scheme for the application of real-time coding system. To well balance these contrary objectives, we firstly analyze constraint buffer definition a "consistent" quality. Then window-based is proposed with one window controlling latency, while other optimizing By applying low complexity frame level ratedistortion model testing sequences, our method shows excellent performance...
Double-armed suture longitudinal intussusception vasoepididymostomy (DA-LIVE) has been widely adopted owing to its simplicity and high success rate; however, specialized double-armed microsutures are required.
We realize an on-chip eigenstate generator using a depth-varying 3D waveguide to overpass the encircling exceptional point (EEP) system. By combining two such generators, both robust all-optical XOR and OR logic operations are achieved.
Unlike classical digital computers in which a bit can represent either 1 or 0 at any time, quantum use two-level system, i.e., qubit, to implement logical operations based on mechanical laws, both values once. Owing the superposition property of qubits, have natural parallel processing advantages and thus potential exceed computational efficiency for particular tasks. Quantum logic gates are generalization networks. It has been proved that two-qubit together with one-qubit adequate...
Femtosecond laser direct writing (FLDW) technique has been widely applied for fabrications of various photonic quantum chips in glass, such as computation, walk, simulation and metrology. Photonic logic gates are the building blocks realization linear optical universal computation. Up to now, several have fabricated by FLDW, polarization encoded Hadamard (H) gate, Controlled NOT (CNOT) herald CNOT gate path phase (CZ) gate. By combining single-qubit two-qubit together, constructed circuits...
Peking University Hospital of Stomatology plays an important role in the advancement oral science and health China.Management for scientific research is imperative part hospital management effort to maintain improve hospital's core competence research.Hence,the system should be continuously strengthened a systematic manner create people-orientated positive working environment. Key words: Scientific management; Core ; Specialty