搜索结果: 1-15 共查到“物理学 Molecules”相关记录58条 . 查询时间(0.109 秒)
Learning to design with atoms and molecules（图）
原子 分子 量子力学
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2023/6/5
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 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...
New 'refrigerator' super-cools molecules to nano-Kelvin temperatures（图）
New refrigerator super-cools molecules nano-Kelvin temperatures
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2020/4/17
For years, scientists have looked for ways to cool molecules to ultracold temperatures, at which point the molecules should slow to a crawl, allowing scientists to precisely control their quantum beha...
‘Gyroscope’ Molecules Form Crystal That’S Both Solid And Full Of Motion（图）
Gyroscope Molecules Form Crystal Both Solid Full Of Motion
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2018/1/31
Molecular machines, much smaller than single cells, may one day be able to deliver drugs to kill cancer cells or patrol your body for signs of disease. But many applications of these machines require ...
Lead dressed like gold:Laser-altered molecules cast alchemy in a different light
Lead dressed like gold Laser-altered molecules cast alchemy different light
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2017/3/14
Since the Middle Ages, alchemists have sought to transmute elements, the most famous example being the long quest to turn lead into gold. Transmutation has been realized in modern times, but on a minu...
MIT team creates ultracold molecules
MIT team ultracold molecules
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2015/6/18
The air around us is a chaotic superhighway of molecules whizzing through space and constantly colliding with each other at speeds of hundreds of miles per hour. Such erratic molecular behavior is nor...
Exotic, gigantic molecules fit inside each other like Russian nesting dolls
Exotic gigantic molecules fit inside each other like Russian nesting dolls
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2015/3/4
University of Chicago scientists have experimentally observed for the first time a phenomenon in ultracold, three-atom molecules predicted by Russian theoretical physicist Vitaly Efimov in 1970.In thi...
Cavity-meidated collisionless sympathetic cooling of molecules with atoms
Cavity-meidated collisionless sympathetic molecules atoms Atomic Physics
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2012/5/29
Cooling a range of molecules to ultracold temperatures (<1 mK) is a difficult but important challenge in molecular physics and chemistry. Collective cavity cooling of molecules is a promising method t...
Dipole-Quadrupole Theory of Surface Enhanced Infrared Absorption and Appearance of Forbidden Lines in the SEIRA Spectra of Symmetrical Molecules
Dipole-Quadrupole Theory Surface Enhanced Infrared Absorption and Appearance Forbidden Lines the SEIRA Spectra Symmetrical Molecules Optics
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2012/4/20
The paper presents main aspects of the Dipole-Quadrupole theory of Surface Enhanced Infrared Absorption (SEIRA). It is pointed out the possibility of appearance of the lines, caused by totally symmetr...
Magneto-electric momentum transfer to atoms and molecules
Magneto-electric momentum atoms and molecules mechanical momentum
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2011/8/11
Abstract: We report the first observation of mechanical momentum transferred to atoms and molecules upon application of crossed electric and magnetic fields. We identify this momentum as the microscop...
Layers of Cold Dipolar Molecules in the Harmonic Approximation
Harmonic Approximation Dipolar Molecules
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2011/7/21
We consider the N-body problem in a layered geometry containing cold polar molecules with dipole moments that are polarized perpendicular to the layers. A harmonic approximation is used to simplify th...
Storage and Adiabatic Cooling of Polar Molecules in a Microstructured Trap
adiabatic cooling cold molecules electrostatic trapping
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2011/8/17
Abstract: We demonstrate loading, trapping and adiabatic cooling of polar molecules in a new type of electric trap. The trap consists of two microstructured capacitor plates with an additional perimet...
Tracing the structure of asymmetric molecules from high-order harmonic generation
asymmetric molecules high-order harmonic generation
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2014/5/28
We investigate high-order harmonic generation (HHG) from asymmetric molecules exposed to intense laser fields. We show that the emissions of odd and even harmonics depend differently on the orientatio...
Population redistribution in optically trapped polar molecules
Population redistribution polar molecules Atomic Physics
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2011/8/3
Abstract: We investigate the rovibrational population redistribution of polar molecules in the electronic ground state induced by spontaneous emission and blackbody radiation. As a model system we use...
Formation of ultracold metastable RbCs molecules by short-range photoassociation
ultracold metastable RbCs molecules short-range photoassociation Atomic Physics
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2011/8/2
Formation of ultracold metastable RbCs molecules by short-range photoassociation.