搜索结果: 1-15 共查到“国际动态 原子分子物理学”相关记录17条 . 查询时间(1.31 秒)
捷克研究证实分子中存在π孔
捷克 分子 π孔
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2024/1/15
捷克科学院有机化学与生物化学研究所、物理研究所和帕拉茨基大学的联合研究团队，通过实验证实了芳香族分子中电子密度不均匀分布以及π孔的存在。
科学家发现调节干扰素基因刺激因子降解的分子机制
干扰素基因 刺激因子降解 分子机制
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2024/1/16
干扰素基因刺激因子（STING）是一种内质网跨膜蛋白，当胞质中存在异常DNA信号后，可在环鸟苷酸-腺苷酸介导下激活I型干扰素反应，并通过溶酶体降解，但STING降解和失活的分子机制尚未完全阐明。近期，日本东北大学与东京大学等单位的一项联合研究发现，STING通过一种名为内吞体分选转运复合体（ESCRT）依赖性的微自噬机制降解。研究成果发表在《Nature Cell Biology》期刊，标题为“S...
Engineers discover a new way to control atomic nuclei as “qubits”（图）
原子核 量子比特 激光
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2023/6/6
In principle, quantum-based devices such as computers and sensors could vastly outperform conventional digital technologies for carrying out many complex tasks. But developing such devices in practice...
Physicists observe rare resonance in molecules for the first time（图）
分子 共振 控制化学反应
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2023/6/7
If she hits just the right pitch, a singer can shatter a wine glass. The reason is resonance. While the glass may vibrate slightly in response to most acoustic tones, a pitch that resonates with the m...
Can you trust your quantum simulator?（图）
量子模拟器 原子尺度系统 奇怪行为
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2023/6/9
At the scale of individual atoms, physics gets weird. Researchers are working to reveal, harness, and control these strange quantum effects using quantum analog simulators — laboratory experiments tha...
How “2D” materials expand（图）
“2D”材质 原子薄材料 电子设备
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2023/6/6
Two-dimensional materials, which consist of just a single layer of atoms, can be packed together more densely than conventional materials, so they could be used to make transistors, solar cells, LEDs,...
ASACUSA sees surprising behaviour of hybrid matter–antimatter atoms in superfluid helium（图）
ASACUSA 超流体氦 物质-反物质原子 混合
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2023/5/26
A hybrid matter--–antimatter helium atom containing an antiproton, the proton’s antimatter equivalent, in place of an electron has an unexpected response to laser light when immersed in superfluid hel...
第五届里德堡原子和分子国际研讨会举办（图）
第五届 里德堡 原子分子 国际研讨会
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2023/4/14
2021年10月28日至31日，由中国科学院精密测量科学与技术创新研究院承办的第五届里德堡原子和分子（IWRAM-V）国际研讨会线上会议举办。
Cornell researchers see atoms at record resolution（图）
康奈尔大学 分辨率 原子分子物理学
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2023/5/24
In 2018, Cornell researchers built a high-powered detector that, in combination with an algorithm-driven process called ptychography, set a world record by tripling the resolution of a state-of-the-ar...
科学家首次成功用离子阱精确测量锘原子质量
首次 离子阱 锘原子 质量
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2010/2/22
以德国亥姆霍兹重离子研究中心（GSI）为首的一个国际研究小组首次成功使用离子阱捕获了102号元素锘的原子，并精确测量了锘原子的质量。该方法使获得长寿命的超重元素成为可能。相关研究成果发表在近期的《自然》杂志上。
Teleportation method proposed by Australian scientists（图）
Teleportation method cold atoms quantum information
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2007/7/4
03 July 2007，Teleportation, a concept popularised in the original Star Trek television series, is edging closer to reality through work being conducted by theorists from The University of Queensland a...
Nuclear Magnetic Resonance advance relies on microscopic detector（图）
molecular structure nuclear magnetic
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2007/5/17
May 15, 2007，Detecting the molecular structure of a tiny protein using nuclear magnetic resonance (NMR) currently requires two things: a million-dollar machine the size of a massive SUV, and a large s...
Tiny Spectrometer Offers Precision Laser Calibration（图）
Spectrometer atomic physics
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2007/5/14
May 10, 2007，A tiny device for calibrating or stabilizing precision lasers has been designed and demonstrated at the National Institute of Standards and Technology (NIST). The prototype device could r...
Microscope "fingerprints" atoms
atoms chemical
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2007/3/2
28 February 2007，The AFM – invented some 20 years ago – is the best eye scientists have for examining atoms on the surfaces of both insulators and conductors. In the most refined "dynamic" mode a tiny...
New 2D Pics Brush Up Image of NIST ‘Frequency Combs’（图）
frequency comb atoms molecules
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2007/2/28
February 15, 2007，Physicists at the National Institute of Standards and Technology (NIST) have taken the first ever two-dimensional pictures of a “frequency comb,” providing extra information that enh...