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The mechanism of f-electron delocalization is investigated within the multi-orbital Anderson lattice model by means of diagrammatic perturbation theory from the atomic limit. The derived equations couple the intra-atomic transition…

强关联电子 · 物理学 2009-11-07 U. Lundin , I. Sandalov , O. Eriksson , B. Johansson

This account presents author's opinion on the mechanism of the H-abstraction from methane by the [FeO](2+) group. In the course of reaction with hydrogen, the Fe-O bond in the ferryl configuration becomes elongated causing transfer of the…

化学物理 · 物理学 2018-05-07 Igor L. Zilberberg

Due to the severe self-interaction errors associated with some density functional approximations, conventional density functionals often fail to dissociate the hemibonded structure of water dimer radical cation (H2O)2+ into the correct…

化学物理 · 物理学 2017-08-23 Piin-Ruey Pan , You-Sheng Lin , Ming-Kang Tsai , Jer-Lai Kuo , Jeng-Da Chai

We report on the realization of a strongly interacting quantum degenerate gas of fermionic atoms in a three-dimensional optical lattice. We prepare a band-insulating state for a two-component Fermi gas with one atom per spin state per…

其他凝聚态物理 · 物理学 2007-05-23 Michael Köhl , Kenneth Günter , Thilo Stöferle , Henning Moritz , Tilman Esslinger

We have observed three Feshbach resonances in collisions between lithium-6 and sodium-23 atoms. The resonances were identified as narrow loss features when the magnetic field was varied. The molecular states causing these resonances have…

软凝聚态物质 · 物理学 2009-11-10 C. A. Stan , M. W. Zwierlein , C. H. Schunck , S. M. F. Raupach , W. Ketterle

We describe a mechanism by which fermions in topologically trivial bands can form correlated states exhibiting a fractional quantum Hall (FQH) effect upon introduction of strong repulsive interactions. These states are solid-liquid…

强关联电子 · 物理学 2018-02-07 Stefanos Kourtis

Feshbach resonances play a vital role in the success of cold atoms investigating strongly-correlated physics. The recent observation of their solid-state analog in the scattering of holes and intralayer excitons in transition metal…

介观与纳米尺度物理 · 物理学 2025-03-11 Marcel Wagner , Rafał Ołdziejewski , Félix Rose , Verena Köder , Clemens Kuhlenkamp , Ataç İmamoğlu , Richard Schmidt

The formation of $O^{-}$ and $O_{2}^{-}$ ions via dissociative electron attachment to a pulsed supersonic jet of $O_{2}$ molecules containing weakly bound small van der Waals clusters seeded in a beam of argon is reported. The energy…

原子与分子团簇 · 物理学 2019-02-15 Irina Jana , Varun Ramaprasad , Dhananjay Nandi

Selective activation and controlled functionalization of C-H bonds in organic molecules is one of the most desirable processes in synthetic chemistry. Despite progress in heterogeneous catalysis using metal surfaces, this goal remains…

Antagonistic salts are composed of hydrophilic and hydrophobic ions. In a mixture solvent (water-oil) such ion pairs are preferentially attracted to water or oil, giving rise to a coupling between the charge density and the composition.…

软凝聚态物质 · 物理学 2016-04-05 Akira Onuki , Shunsuke Yabunaka , Takeaki Araki , Ryuichi Okamoto

We study the breakup of $\text{H}_2^+$ exposed to super-intense, femtosecond laser pulses with frequencies greater than that corresponding to the ionization potential. By solving the time-dependent Schr\"odinger equation in an extensive…

原子物理 · 物理学 2016-04-12 Lun Yue , Lars Bojer Madsen

Formic acid (HCOOH) and carbon dioxide (CO2) are simple species that have been detected in the interstellar medium. The solid-state formation pathways of these species under experimental conditions relevant to prestellar cores are primarily…

太阳与恒星天体物理 · 物理学 2019-06-26 D. Qasim , T. Lamberts , J. He , K. -J. Chuang , G. Fedoseev , S. Ioppolo , A. C. A. Boogert , H. Linnartz

The global potential energy surfaces of the first six singlet electronic states of CO$_2$, 1---3$^1/!A'$ and 1---3$^1/!A"$ are constructed using high level ab initio calculations. In linear molecule, they correspond to…

化学物理 · 物理学 2015-06-15 Sergy Yu. Grebenshchikov

A quantitative theoretical study of the dissociative recombination of SH$^+$ with electrons has been carried out. Multireference, configuration interaction calculations were used to determine accurate potential energy curves for SH$^+$ and…

天体物理仪器与方法 · 物理学 2024-05-31 D. O. Kashinski , D. Talbi , A. P. Hickman , O. E. Di Nallo , F. Colboc , K. Chakrabarti , I. F. Schneider , J. Zs Mezei

We consider the long-range states expected for complexes formed from an alkali-metal diatomic molecule in a singlet state and an alkali-metal atom. We explore the structure of the Hamiltonian for such systems, and the couplings between the…

原子物理 · 物理学 2023-03-13 Matthew D. Frye , Jeremy M. Hutson

We reveal the existence of high-density Feshbach resonances in the collision between the ground and metastable states of $^{171}$Yb and coherently produce the associated Feshbach molecules by photoassociation. The extremely small transition…

原子物理 · 物理学 2016-02-01 Shintaro Taie , Shunsuke Watanabe , Tomohiro Ichinose , Yoshiro Takahashi

The low-mass protostellar region L1527 is unusual because it contains observable abundances of unsaturated carbon-chain molecules including CnH radicals, H2Cn carbenes, cyanopolyynes, and the negative ions C4H- and C6H-, all of which are…

天体物理学 · 物理学 2010-11-11 Nanase Harada , Eric Herbst

We study numerically the effect of on-site Hubbard interaction U between two electrons in the quasiperiodic Harper's equation. In the periodic chain limit by mapping the problem to that of one electron in two dimensions with a diagonal line…

无序系统与神经网络 · 物理学 2009-10-30 S. N. Evangelou , D. E. Katsanos

In order to better understand their potential formation in combustion systems, a detailed kinetic mechanism for the formation of short-chain monocarboxylic acids, formic (HCOOH), acetic (CH3COOH), propionic (C2H5COOH) and propenic…

化学物理 · 物理学 2009-03-31 Frédérique Battin-Leclerc , A. A. Konnov , J. L. Jaffrezo , M. Legrand

We investigate the dissociation of $H_2^+$ into a proton and a $H^0$ after single ionization with photons of an energy close to the threshold. We find that the $p^+$ and the $H^0$ do not emerge symmetrically in case of the $H_2^+$…