搜索结果: 1-15 共查到“原子分子物理学 molecules”相关记录16条 . 查询时间(0.051 秒)
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
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...
Cavity-meidated collisionless sympathetic cooling of molecules with atoms
Cavity-meidated collisionless sympathetic molecules atoms Atomic Physics
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...
Storage and Adiabatic Cooling of Polar Molecules in a Microstructured Trap
adiabatic cooling cold molecules electrostatic trapping
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...
Population redistribution in optically trapped polar molecules
Population redistribution polar molecules Atomic Physics
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
2011/8/2
Formation of ultracold metastable RbCs molecules by short-range photoassociation.
Time scaling with efficient time-propagation techniques for atoms and molecules in pulsed radiation fields
Time scaling atoms and molecules pulsed radiation fields
2011/9/5
We present an ab initio approach to solve the time-dependent Schrodinger equation to treat electron and photon impact multiple ionization of atoms or molecules. It combines the already known time sca...
Two-center minima in harmonic spectra from aligned polar molecules
Two-center harmonic spectra aligned polar molecules
2011/9/5
We extend a model of two-center interference to include the superposition of opposite orientations in aligned polar molecules. We show that the position of the minimum in the harmonic spectrum from bo...
Harmonics generation and intense terahertz radiation from polar molecules at multiphoton resonant excitation in laser fields
laser fields polar molecules Harmonics generation and intense terahertz radiation
2011/9/1
The coherent radiation spectrum of two-level polar molecules with UV transition is studied at the multiphoton resonant excitation by a moderately strong laser field. The spectrum corresponding to harm...
Ultracold spin-polarized mixtures of 2Sigma molecules with S-state atoms: Collisional stability and implications for sympathetic cooling
S-state atoms physics and chemistry molecular
2011/8/31
The prospects of sympathetic cooling of polar molecules with magnetically co-trapped alkalimetal atoms are generally considered poor due to strongly anisotropic atom-molecule interactions leading to l...
Molecular spectroscopy for ground-state transfer of ultracold RbCs molecules
Molecular spectroscopy ultracold RbCs molecules
2011/8/26
We perform one- and two-photon high resolution spectroscopy on ultracold samples of RbCs Feshbach molecules with the aim to identify a suitable route for efficient ground-state transfer in the quantum...
Triplet-singlet conversion in ultracold Cs$_2$ and production of ground state molecules
Triplet-singlet conversion ground state molecules
2010/11/17
We propose a process to convert ultracold metastable Cs$_2$ molecules in their lowest triplet state into (singlet) ground state molecules in their lowest vibrational levels. Molecules are first pumpe...
A Moving Magnetic Trap Decelerator: a New Source for Cold Atoms and Molecules
Moving Magnetic Trap Decelerator Source Cold Atoms Molecules
2010/11/12
We present a new source of cold paramagnetic atoms and molecules. The paramagnetic particles are cooled during the adiabatic expansion and become entrained in an intense, cold but fast supersonic bea...
Predicting and verifying transition strengths from weakly bound molecules
Predicting verifying transition strengths weakly bound molecules
2010/11/16
We investigated transition strengths from ultracold weakly bound 41K87Rb molecules produced via the photoassociation of laser-cooled atoms. An accurate potential energy curve of the excited state (3)...
Study of the double non linear quantum resonances in diatomic molecules
Study double non linear quantum resonances diatomic molecules
2010/11/5
We study the quantum dynamics of diatomic molecule driven by a circularly polarized resonant electric field. We look for a quantum effect due to classical chaos appearing due to the overlapping of no...