Magnon-atom interaction via dispersive cavities: Magnon entanglement

2021 ◽  
Vol 103 (22) ◽  
Author(s):  
Deyi Kong ◽  
Xiangming Hu ◽  
Liang Hu ◽  
Jun Xu
Keyword(s):  
Atom Interaction

scholarly journals Excitation of Atomic Hydrogen by Proton Impact in the Presence of a Resonant Laser Field Using the First Order Magnus Approximation

1992 ◽  
Vol 45 (1) ◽  
pp. 47 ◽  
Author(s):  
Bhupat Sharma ◽  
Man Mohan
Keyword(s):  
Laser Beam ◽  
Computer Time ◽  
Dipole Approximation ◽  
Collision Dynamics ◽  
Hydrogen Atoms ◽  
Close Coupling ◽  
First Order ◽  
Resonant Laser ◽  
Atom Interaction ◽  
Transverse Polarisation

We consider proton collisions from hydrogen atoms in the presence of a laser beam (taken in the electric dipole approximation) that resonantly (or nearly resonantly) excites the hydrogen atoms from the Is to the 2p state. The laser beam is linearly polarised with polarisation either parallel (longitudinal) or perpendicular (transverse) to the direction of incidence of the proton. A non-perturbative quasi-energy approach is used to describe the laser-atom interaction, while the first-order Magnus approximation is used to describe the collision dynamics in the presence of the nearly resonant laser beam. We have calculated the integrated cross section o-(2s} for the excitation of the 2s state. It is found that 0-(2s} is small for longitudinal polarisation, as compared with transverse polarisation. We have also compared our field-free results obtained by using the first-order Magnus approximation to that obtained by the close-coupling approximation. Although both methods give excellent results, the former method is quite demanding in terms of computer time.

Quantum Phase Transition for the Dicke Model with the Atom-Atom Interaction

2016 ◽  
Vol 22 (3) ◽  
pp. 254-262
Author(s):  
吉睿 JI Rui ◽  
刘妮 LIU Ni ◽  
梁九卿 LIANG Jiu-qing
Keyword(s):  
Phase Transition ◽  
Quantum Phase Transition ◽  
Quantum Phase ◽  
Atom Interaction ◽  
Dicke Model

H atom interaction with a 14 atom nickel cluster

1984 ◽  
Vol 137 (2-3) ◽  
pp. A58
Author(s):  
F. Ruette ◽  
G. Blyholder ◽  
John D. Head
Keyword(s):  
Atom Interaction ◽  
Nickel Cluster

Chalcogen Atom Interaction with Palladium and the Complex Molecule–Metal Interface in Thiol Self Assembly

2014 ◽  
Vol 118 (43) ◽  
pp. 24983-24994 ◽  
Author(s):  
Juanjuan Jia ◽  
Azzedine Bendounan ◽  
Karine Chaouchi ◽  
Stefan Kubsky ◽  
Fausto Sirotti ◽  
...  
Keyword(s):  
Self Assembly ◽  
Complex Molecule ◽  
Chalcogen Atom ◽  
Metal Interface ◽  
Atom Interaction
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