搜索结果: 1-15 共查到“原子分子物理学 transition”相关记录19条 . 查询时间(0.189 秒)
A Resolved-Super-Transition-Arrays method for calculation of the spectral absorption coefficient in hot plasmas
Resolved-Super-Transition-Arrays method calculation of the spectral absorption coefficient hot plasmas Atomic Physics
2012/4/24
A new method, 'Resolved-Super-Transition-Arrays', for calculation of the spectral absorption coefficient in hot plasmas is presented. The formulae of the traditional Super-Transition-Arrays method [A....
Laser stabilization to an atomic transition using an optically generated dispersive lineshape
Laser stabilization atomic transition optically generated dispersive lineshape Atomic Physics
2012/4/19
We report on a simple and robust technique to generate a dispersive signal which serves as an error signal to electronically stabilize a monomode cw laser emitting around an atomic resonance. We explo...
Observation of a rotational transition in trapped and sympathetically cooled molecular ions
Observation rotational transition trapped sympathetically cooled molecular ions
2012/2/28
We demonstrate rotational excitation of molecular ions that are sympathetically cooled by laser-cooled atomic ions to a temperature as low as ca. 10 mK. The molecular hydrogen ions HD+ and the fundame...
The Hanle Effect of the Hydrogen Ly-alpha Line for Probing the Magnetism of the Solar Transition Region
Hanle Effect Hydrogen Ly-alpha Line Solar Transition Region
2011/8/18
Abstract: We present some theoretical predictions concerning the amplitude and magnetic sensitivity of the linear polarization signals produced by scattering processes in the hydrogen Ly-alpha line of...
Remote frequency measurement of the 1S0-3P1 transition in laser cooled 24Mg
Remote frequency measurement 1S0-3P1 transition laser cooled 24Mg Quantum Gases
2011/8/4
Abstract: We perform Ramsey-Borde spectroscopy on laser cooled magnesium atoms in free fall to measure the 1S0-3P1 intercombination transition frequency. The measured value of 655 659 923 839 730 (48)...
Improved Measurement of the Hydrogen 1S - 2S Transition Frequency
Hydrogen 1S - 2S Transition Frequency atomic hydrogen photon spectroscopy
2011/8/4
Abstract: We have measured the 1S - 2S transition frequency in atomic hydrogen via two photon spectroscopy on a 5.8 K atomic beam. We obtain $f_{1S-2S} = 2 466 061 413 187 035 (10)$ Hz for the hyperfi...
Polarization spectroscopy of an excited state transition
Polarization spectroscopy excited state transition room temperature cesium vapor
2011/8/4
Abstract: We demonstrate polarization spectroscopy of an excited state transition in room temperature cesium vapor. An anisotropy induced by a circularly polarized pump beam on the D2 transition is ob...
Bose-Einstein condensation transition studies for atoms confined in Laguerre-Gaussian laser modes
Bose-Einstein condensation transition atoms Laguerre-Gaussian laser modes Atomic Physics
2011/8/1
Abstract: Multiply-connected traps for cold, neutral atoms fix vortex cores of quantum gases. Laguerre-Gaussian laser modes are ideal for such traps due to their phase stability. We report theoretical...
Bose-Einstein condensation transition studies for atoms confined in Laguerre-Gaussian laser modes
Bose-Einstein condensation transition atoms Laguerre-Gaussian laser modes Atomic Physics
2011/8/1
Abstract: Multiply-connected traps for cold, neutral atoms fix vortex cores of quantum gases. Laguerre-Gaussian laser modes are ideal for such traps due to their phase stability. We report theoretical...
Stationary point approach to the phase transition of the classical XY chain with power law interactions
Stationary point power law interactions
2010/11/25
The stationary points of the Hamiltonian H of the classical XY chain with power law pair
interactions (i. e., decaying like r− with the distance) are analyzed. For a class of “spinwave-type”st...
First Order Phase Transition of a Long Polymer Chain
First Order Phase Transition Long Polymer Chain
2010/11/17
We consider a model consisting of a self-avoiding polygon occupying a variable density of the sites of a square lattice. A fixed energy is associated with each 90◦-bend of the polygon. We use a ...
Phase transition to Bose-Einstein condensation for a Bosonic gas confined in a combined trap
Phase transition Bose-Einstein condensation Bosonic gas confined
2010/11/17
We present a study of phase transition to macroscopic superfluidity for an ultracold bosonic gas confined in a combined trap formed by a one-dimensional optical lattice and a harmonic potential, focu...
Towards the N_f=2 deconfinement transition temperature with O(a) improved Wilson fermions: An update
Lattice QCD Quark-gluon plasma Deconfinement Phase transitions
2011/1/14
We give an update on our current project to determine the transition temperature and the order of the deconfinement transition in the chiral limit of two flavour QCD. We use nonperturbatively O(a) imp...
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)...
Tunable one-dimensional microwave emissions from cyclic-transition three-level atoms
Tunable one-dimensional microwave emissions -transition three-level atoms
2010/11/9
By strongly driving a cyclic-transition three-level artificial atom, demonstrated by such as a flux-based superconducting circuit, we show that coherent microwave signals can be excited along a couple...