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任祥華 博士Optica Quantum 3, 590 (2025).Academia, governments, and industry around the world are on a quest to build long-distance quantum communication networks for a future quantum internet. Using air and fiber channels, quantum communication quickly faced the daunting challenge of exponential photon loss with distance. Quantum repeaters were invented to solve the loss problem by probabilistically establishing entanglement over short distances and using quantum memories to synchronize the teleportation of such entanglement to long distances. However, due to imperfections and complexities of quantum memories, ground-based proof-of-concept repeater demonstrations have yet been restricted to metropolitan-scale distances. In contrast, direct photon transmission from satellites through empty space faces almost no exponential absorption loss and only quadratic beam divergence loss. A single ...
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謝佳龍 博士ACS Photonics 11(12), 5239–5250 (2024)Interferometric scattering (iSCAT) microscopy is currently among the most powerful techniques available for achieving high-sensitivity single-particle localization. This capability is realized through homodyne detection, where interference with a reference wave offers the promise of exceptionally precise three-dimensional (3D) localization. However, the practical application of iSCAT to 3D tracking has been hampered by rapid oscillations in the signal-to-noise ratio (SNR) as particles move along the axial direction. In this study, we introduce a novel strategy based on back pupil plane engineering, wherein a spiral phase mask is used to redistribute the phase of the scattered field of the particle uniformly across phase space, thus ensuring consistent SNR as the particle moves throughout the focal volume. Our findings demonstrate that this modified ...
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許良彥 博士J. Phys. Chem. Lett., 16, 1604−1619 (2025).The interaction between light and molecules under quantum electrodynamics (QED) has long been less emphasized in physical chemistry, as semiclassical theories have dominated due to their relative simplicity. Recent experimental advances in polariton chemistry highlight the need for a theoretical framework that transcends traditional cavity QED and molecular QED models. Macroscopic QED is presented as a unified framework that seamlessly incorporates infinite photonic modes and dielectric environments, enabling applications to systems involving plasmon polaritons and cavity photons. This Perspective demonstrates the applicability of macroscopic QED to chemical phenomena through breakthroughs in molecular fluorescence, resonance energy transfer, and electron transfer. The macroscopic QED framework not only resolves the limitations of classical theorie ...
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任祥華 博士Phys. Rev. Lett. 136, 050802 (2026).The so-called state-carving protocol generates high-fidelity entangled states at an atom-cavity interface without requiring high cavity cooperativity. However, this protocol is limited to 50% efficiency, which restricts its applicability. We propose a simple modification to the state-carving protocol to achieve efficient entanglement generation, with unit probability in principle. Unlike previous two-photon schemes, ours employs only one photon which interacts with the atoms twice - avoiding separate photon detections which causes irrecoverable probability loss. We present a detailed description and performance evaluation of our protocol under non-ideal conditions. High fidelity of 0.999 can be achieved with cavity cooperativity of only 34. Efficient state-carving paves the way for large-scale entanglement generation at cavity-interfaces for modula ...
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許良彥 博士J. Chem. Phys. 162, 034107 (2025).The quantum-electrodynamic non-adiabatic emission (QED-NAE) is a type of radiatively assisted vibronic de-excitation due to electromagnetic vacuum fluctuations on non-adiabatic processes. Building on our previous work [Tsai et al., J. Phys. Chem. Lett. 14, 5924 (2023)], we extend the theory of the QED-NAE rate from a single cavity photonic mode to infinite photonic modes and calculate the QED-NAE rates of 9-cyanoanthracene at the first-principles level. To avoid the confusion, the quantum electrodynamic internal conversion process is renamed as “QED-NAE” in our present work. According to our theory, we identify three key factors influencing the QED-NAE processes: light–matter coupling strength (mode volume), mass-weighted orientation factor, and photonic density of states. The mode volume is the primary factor causing rate differe ...
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林靖衛 博士ACS Nano 18, 18534–18547 (2024).Cytometry plays a crucial role in characterizing cell properties, but its restricted optical window (400-850 nm) limits the number of stained fluorophores that can be detected simultaneously and hampers the study and utilization of short-wave infrared (SWIR; 900-1,700 nm) fluorophores in cells. Here we introduce two SWIR-based methods to address these limitations: SWIR flow cytometry and SWIR image cytometry. We develop a quantification protocol for deducing cellular fluorophore mass. Both systems achieve a limit of detection of ~0.1 fg cell−1 within a 30-min experimental timeframe, using individualized, high-purity (6,5) single-wall carbon nanotubes as a model fluorophore and macrophage-like RAW264.7 as a model cell line. This high-sensitivity feature reveals that low-dose (6,5) serves as an antioxidant, and cell morphology a ...
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任祥華 博士Quantum Sci. Technol. 10 025021 (2025).Open quantum systems are susceptible to losses in information, energy, and particles due to their surrounding environment. One novel strategy to mitigate these losses is to transform them into advantages for quantum technologies through tailored non-Hermitian quantum systems. In this work, we theoretically propose a fast generation of multipartite entanglement in non-Hermitian qubits. Our findings reveal that weakly coupled non-Hermitian qubits can accelerate multiparty entanglement generation by thousands of times compared to Hermitian qubits, in particular when approaching the 2^n-th order exceptional points of n qubits in the PT-symmetric regime. Furthermore, we show that Hermitian qubits can generate GHZ states with a high fidelity more than 0.9995 in a timescale comparable to that of non-Hermitian qubits, but at the expense of intense driving ...
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林育如 博士Phys. Rev. Lett. 135, 093401 (2025).Gauge fields are ubiquitous in modern quantum physics. In superfluids, quantized vortices can be induced by gauge fields. Here we demonstrate the first experimental observation of vortex nucleations in light-dressed spinor Bose-Einstein condensates under radially-localized synthetic magnetic fields. The light-induced spin-orbital-angular-momentum coupling creates azimuthal gauge potentials $\vec{A}$ for the lowest-energy spinor branch dressed eigenstate. The observation of the atomic wave function in the lowest-energy dressed eigenstate reveals that vortices nucleate from the cloud center of a vortex-free state with canonical momentum $\vec{p} = 0$. This is because a large circulating azimuthal velocity field ~$\vec{p}-\vec{A}$ at the condensate center results in a dynamically unstable localized excitation that initiates vortex nucleations. Our obs ...
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張煥正 博士Adv. Funct. Mater. 36, e13406 (2026).Nanoscale quantum sensing is playing an increasingly critical role across diverse areas of research, particularly in the rapidly evolving field of semiconductor nanoelectronics. In this work, ultrathin fluorescent nanodiamond (FND) films are developed to function as quantum sensors for in operando measurements of magnetic fields and temperature in semiconductor devices. FNDs are electrically insulating carbon nanomaterials containing nitrogen-vacancy (NV) centers, renowned for their exceptional photostability and distinctive quantum properties. An electrospray deposition method is first established to produce uniform, near-monolayer FND films on bipolar junction transistors (BJTs) and field-effect transistors (FETs) without compromising their performance. Then, optically detected magnetic resonance (ODMR)s is employed to det ...
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2026-03-05
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2025-11-14
演講資訊
Mar
12
2026
12
2026
Quantum Information meets Quantum Matter: Entanglement and Magic
張博堯副教授, 國立清華大學物理學系
2026-03-12 下午 03:30 浦大邦紀念講堂
Mar
19
2026
19
2026
Resolving Glycan Complexity and Advancing Structural Glycomics via LODES/MS
劉佳燕博士, New Hiring for Dept. of Chemistry
2026-03-19 下午 03:30 台大化學系松柏講堂
Mar
31
2026
31
2026
TBA
Dr. Christa Fittschen, CNRS –Université Lille, France
2026-03-31 下午 02:00 張昭鼎紀念講堂
Apr
02
2026
02
2026
Decoding the Melody of Life: Unlocking New Horizons in Disease Diagnosis through Proteomic Technologies
陳玉如 特聘研究員, 中央研究院化學研究所
2026-04-02 下午 03:30 浦大邦紀念講堂
Apr
09
2026
09
2026
Single spin defects in wide bandgap materials for various quantum applications
陳俞辰 助研究員, 中央研究院應用科學研究中心
2026-04-09 下午 03:30 浦大邦紀念講堂
活動資訊
CECAM-TW Node Event:Recent trends in computer simulation in Physics, Chemistry and Biology
浦大邦紀念講堂
2026-03-25 上午 09:00 ~ 2026-03-26 上午 12:00
2026-03-25 上午 09:00 ~ 2026-03-26 上午 12:00
Recent trends in computer simulation in Physics, Chemistry and Biology
Atomistic and Molecular Simulations在推動物理、化學及生物學基礎現象的理解上,擁有深遠的影響。近年來,隨著硬體運算能力(如 CPU、GPU、TPU)的成長,以及軟體技術(如機器學習勢能、多尺度模擬)的突破,計算科學已進化為功能強大的新型工具,能為科學家提供前所未有的模擬精度與系統細節。
本研討會旨在匯聚相關領域的頂尖專家,不僅討論模擬技術的最新進展,更核心的目標是探討如何運用這些新興工具,解決過往的科學難題。除了特邀演講外,本研討會特別為年輕研究人員(包括博士後研究員、博士生等)設有發聲平台,提供短篇口頭發表與海報展示的機會,鼓勵來自不同背景的學術新秀分享研究成果,並與同儕及前輩建立學術連結。
日期: 2026年3月25日至3月26日
地點: 中研院原分所 浦大邦紀念講堂 (台大校園內)
會議註冊網址: https://www.cecam.org/workshop-details/recent-trends-in-computer-simulation-in-physics-chemistry-and-biology-1559 (免費報名,3/13截止)
聯絡人: Ms. Jess Wu
AMO物理研討會將於 2026 年 4 月 17 日舉行,為期一天,聚焦原子、分子
與光學物理的最新研究進展。活動邀請來自台灣及國際的領域專家發表專題演
講,提供當前發展的整體概覽,並促進深入的學術交流與討論。本工作坊旨在
加強學術互動、促進跨領域合作,並培育新的研究夥伴關係。誠摯邀請對原子
、分子與光學物理有興趣的研究人員、博士後研究員及研究生踴躍參加。
日期: 2026 年 4 月 17 日
地點:中央研究院原子與分子科學研究所浦大邦講堂(台大校園內)
報名網站:https://reurl.cc/GGz8vA
聯絡人: Li-Jing Hong(lijing@as.edu.tw)
量子科技科普演講及論壇
本活動包含科普演講及論壇,主旨在介紹量子科學的基礎概念,以及其在現代
科技與前沿研究中的應用與發展。
演講題目為「量子時代:從原子鐘到量子電腦」, 由麻省理工學院(MIT)教
授暨 QuEra 原子平台量子電腦公司技術長Vladan Vuletić主講,內容將以原子
鐘與量子電腦的發展為例,討論量子科學與技術的前沿發展現況。
座談會由主講人及金政院士(芝加哥大學)、及中央研究院原子與分子科學研
究所的 陳應誠研究員 及張銘顯副研究員 共同擔任與談者,和與會者交流討論
量子科技的研究現況、學習規劃及其發展趨勢。
日期: 2026 年 4 月 18 日
地點:中央研究院原子與分子科學研究所浦大邦講堂(台大校園內)
報名網站:https://reurl.cc/KOymXj
聯絡人: Li-Jing Hong(lijing@as.edu.tw)
中央研究院-全院計畫
國際研究生學程(TIGP)
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最後更新於 2026-03-09 19:05:23
地址: 106319 台北市羅斯福路四段一號 或 106923 臺北臺大郵局 第23-166號信箱
電話:886-2-2362-0212 傳真:886-2-2362-0200 電子郵件:iamspublic@gate.sinica.edu.tw
最後更新於 2026-03-09 19:05:23
中央研究院 原子與分子科學研究所






