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MIT undergraduates are learning about nanoscale science and engineering from individual atoms up to full-scale functional systems, and they’re doing it hands-on at MIT.nano.
Physicists harness quantum “time reversal” to measure vibrating atoms（图）
量子 时间反转 振动原子 原子钟 量子传感器
2023/6/9
The quantum vibrations in atoms hold a miniature world of information. If scientists can accurately measure these atomic oscillations, and how they evolve over time, they can hone the precision of ato...
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
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...
MIT physicists have discovered a new quantum bit, or “qubit,” in the form of vibrating pairs of atoms known as fermions. They found that when pairs of fermions are chilled and trapped in an optical la...
导读：由上海天文台科学家领衔的ATOMS项目组近期发现了近百个具有丰富化学特征的大质量 “分子热核(hot molecular core)”，并对这些“宇宙化工厂”的演化时标进行了限制。
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...
ATOMS项目首批成果发布---——初步揭开大质量恒星形成区的神秘面纱（图）
ATOMS项目 大质量 恒星形成 神秘面纱
2020/6/29
恒星是可以通过核聚变发光发热的等离子体星球，是构成可见宇宙的 “原子(atoms)”。离我们最近的恒星——太阳只是银河系千亿恒星中最普普通通的一员，是“个头”比较小的矮星。比太阳个头更大的恒星，特别是大质量恒星(质量大于8个太阳质量)虽然稀少，但却影响巨大[注1]。然而，大质量恒星是如何形成的还是一个未解之谜。 中国科学院上海天文台刘铁博士领衔的国际团队，利用世界上最先进的毫米波/亚毫米波干涉阵...
The Ultimate Defense Against Hackers May Be Just A Few Atoms Thick（图）
Ultimate Defense Against Hackers Atoms Thick
2017/12/18
The next generation of electronic hardware security may be at hand as researchers at New York University Tandon School of Engineering introduce a new class of unclonable cybersecurity security primiti...
Scientists Demonstrate One Of Largest Quantum Simulators Yet,With 51 Atoms
Scientists Largest Quantum Simulators Yet 51 Atoms
2017/12/18
Physicists at MIT and Harvard University have demonstrated a new way to manipulate quantum bits of matter. In a paper published today in the journal Nature, they report using a system of finely tuned ...
UChicago scientists see fireworks from atoms at ultra-low temperatures（图）
UChicago scientists fireworks atoms ultra-low temperatures
2017/11/23
Scientists aren’t normally treated to fireworks when they discover something about the universe. But a team of University of Chicago researchers found a show waiting for them at the atomic level—along...
Ultracold atoms point toward an intriguing magnetic behavior（图）
Ultracold atoms point toward magnetic behavior
2017/10/25
The researchers found that applying a strong magnetic field to these ultracold atoms caused them to line up in an alternating pattern and lean away from each other. The behavior, which researchers cal...
Quantum limited measurement of magnetic field gradient with entangled atoms
Quantum limited measurement magnetic field gradient entangled atoms
2016/1/23
We propose a method to detect the amplitude gradient of a microwave field by using a pair of entangled two-component Bose-Einstein condensates. We consider the two spatially separated condensates to b...
Direct Probe of Topological Order for Cold Atoms.
Direct Probe Topological Order Cold Atoms
2016/1/22
Cold-atom experiments in optical lattices offer a versatile platform to realize various topological quantum phases. A key challenge in those experiments is to unambiguously probe the topological order...
From atoms to steps:The microscopic origins of crystal evolution
Burton–Cabrera–Frank theory Solid-on-solid model Non-equilibrium statistical mechanics
2015/10/16
The Burton–Cabrera–Frank (BCF) theory of crystal growth has been successful in describing a wide range of phenomena in surface physics. Typical crystal surfaces are slightly misoriented with respect t...
Curvelets and Wave Atoms for Mirror-Extended Images
Curvelets Wave Atoms Mirror-Extended Images
2015/7/15
We present variants of both the digital curvelet transform, and the digital wave atom transform, which handle the image boundaries by mirror extension. Previous versions of these transforms treated im...