Rapid Cryogenic Characterization of 1,024 Integrated Silicon Quantum Dot Devices

Rapid Cryogenic Characterization of 1,024 Integrated Silicon Quantum Dot Devices: A Review Background Quantum computing, as a disruptive technology in computing, holds the promise of far surpassing traditional high-performance computers in areas such as materials science, drug discovery, and big data search. Silicon-based quantum dots (Quantum Dot,...

A Zero External Magnetic Field Quantum Standard of Resistance at the 10⁻⁹ Level

Academic Background and Problem Statement In metrology, the quantum Hall effect (QHE) and the Josephson effect respectively provide quantum standards for electrical resistance (ohm) and voltage (volt). However, conventional quantum Hall resistance standards (QHRs) rely on strong external magnetic fields (typically requiring superconducting magnets ...

A Seamless Graphene Spin Valve Based on Proximity to Van der Waals Magnet Cr2Ge2Te6

Construction of a Seamless Graphene Spin Valve: Proximity Effects from van der Waals Magnet Cr₂Ge₂Te₆ Research Background and Significance Graphene, as a two-dimensional material, has significant potential applications in spintronics due to its excellent electron transport properties and long spin diffusion length. However, graphene’s intrinsic spi...

Fractional Quantum Hall Phases in High-Mobility n-Type Molybdenum Disulfide Transistors

Research Report on the Paper on Fractional Quantum Hall Phases in High Mobility n-Type Molybdenum Disulfide Transistors Background and Motivation At low temperatures, field-effect transistors (FETs) based on semiconducting transition metal dichalcogenides (TMDs) theoretically provide high carrier mobility, strong spin-orbit coupling, and intrinsic ...

229ThF4 Thin Films for Solid-State Nuclear Clocks

229ThF4 Thin Films for Solid-State Nuclear Clocks

Research on Solid-State Nuclear Clocks Based on 229ThF4 Thin Films Academic Background Nuclear clocks, based on nuclear transitions, offer extremely high precision and stability. In recent years, nuclear clocks based on the thorium-229 (229Th) nuclear isomer transition have garnered significant attention. The 229Th nuclear isomer transition has an ...

Terahertz Field-Induced Metastable Magnetization Near Criticality in FePS3

Terahertz Field-Induced Metastable Magnetization Near Criticality in FePS3

Terahertz Field-Induced Metastable Magnetization Near Criticality in FePS₃ Academic Background In recent years, controlling the functional properties of quantum materials with light has emerged as a frontier in condensed matter physics, leading to the discovery of various light-induced phases of matter, such as superconductivity, ferroelectricity, ...

Controlling the Spectral Persistence of a Random Laser

Controlling the Spectral Persistence of a Random Laser Research Background Since their theoretical proposal by Letokhov in the 1960s, Random Lasers (hereinafter referred to as RLs) have gradually become a widely researched field. A significant feature of RLs is that they do not require precisely manufactured optical cavities, which gives them consi...

Pound–Drever–Hall Feedforward: Laser Phase Noise Suppression Beyond Feedback

Special Report: Pound–Drever–Hall Feedforward Technique: Laser Phase Noise Suppression Beyond Feedback Authors: Yu-Xin Chao, Zhen-Xing Hua, Xin-Hui Liang, Zong-Pei Yue, Li You, Meng Khoon Tey Institution: State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, China Journal: Optica Publication D...

Ultra-Narrow-Linewidth Hybrid-Integrated Self-Injection Locked Laser at 780 nm

Research Report on Hybrid Integrated Ultra-Narrow Linewidth Self-Injection Locking 780nm Laser Background In modern technology, narrow linewidth lasers play an essential role in various applications, including classical and quantum sensing, ion trap systems, positioning/navigation/timing systems, optical clocks, and microwave frequency synthesizers...

Mode-locked Waveguide Polariton Laser

Research Report on the Realization of Blue-Ultraviolet Light Mode-Locking by Polariton Waveguides In the field of modern optoelectronics, continuous advancements in laser technology have greatly propelled the development of information technology, biomedicine, and industrial processing, among other sectors. Mode-locked laser technology, in particul...