scholarly journals Quantum interference between spin-orbit split partial waves in the F + HD → HF + D reaction

Science ◽  
2021 ◽  
Vol 371 (6532) ◽  
pp. 936-940 ◽  
Author(s):  
Wentao Chen ◽  
Ransheng Wang ◽  
Daofu Yuan ◽  
Hailin Zhao ◽  
Chang Luo ◽  
...  
Keyword(s):  
Electron Spin ◽  
Cross Sections ◽  
Quantum Interference ◽  
Quantum Dynamics ◽  
Reaction Dynamics ◽  
Spin Orbit ◽  
Resolution Imaging ◽  
Spin Orbit Interactions ◽  
Shaped Pattern ◽  
Orbit Characteristics

The effect of electron spin-orbit interactions on chemical reaction dynamics has been a topic of much research interest. Here we report a combined experimental and theoretical study on the effect of electron spin and orbital angular momentum in the F + HD → HF + D reaction. Using a high-resolution imaging technique, we observed a peculiar horseshoe-shaped pattern in the product rotational-state–resolved differential cross sections around the forward-scattering direction. The unusual dynamics pattern could only be explained properly by highly accurate quantum dynamics theory when full spin-orbit characteristics were considered. Theoretical analysis revealed that the horseshoe pattern was largely the result of quantum interference between spin-orbit split–partial-wave resonances with positive and negative parities, providing a distinctive example of how spin-orbit interaction can effectively influence reaction dynamics.

scholarly journals The role of spin–orbit effects in the mobility of N+ ions moving in a helium gas at low temperature

2020 ◽  
Vol 74 (7) ◽  
Author(s):  
Lamia Aïssaoui ◽  
Peter J. Knowles ◽  
Moncef Bouledroua
Keyword(s):  
Low Temperature ◽  
Cross Sections ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Temperature Model ◽  
Helium Gas ◽  
Spin Orbit Interactions ◽  
High Level

Abstract The mobility of N+ ions in ground-state helium gas at very low temperature is examined with explicit inclusion of spin–orbit coupling effects. The ionic kinetics is treated theoretically with the three-temperature model. The N+–He interaction potentials, including spin–orbit coupling, are determined using high-level ab initio calculations. Then, the classical and quantal transport cross sections, both needed in the computation of the mobility coefficients, are calculated in terms of the collisional energy of the N+–He system. The numerical results, at temperature 4.3 K, show the spin–orbit interactions have negligible effect on the mobility coefficients. Graphical abstract

SPIN INTERFERENCE CAUSED BY SPIN-ORBIT INTERACTION IN NON-MAGNETIC HETEROSTRUCTURES

2010 ◽  
Vol 24 (17) ◽  
pp. 1839-1845 ◽  
Author(s):  
YONG-MEI ZHANG ◽  
JIN-DOU QIU ◽  
CHUN ZHANG ◽  
DONG-SHENG HU
Keyword(s):  
Quantum Interference ◽  
Spin Transport ◽  
Quantum Information Processing ◽  
Angle Of Incidence ◽  
Spin Orbit ◽  
Light Passing ◽  
Magnetic Heterostructures ◽  
Spin Orbit Interactions ◽  
Polarization Of Light ◽  
Shed Light

We study spin transport properties in non-magnetic heterostructures in the presence of different spin-orbit interactions. For an unpolarized beam with zero angle of incidence, the transmitted spin-up and spin-down electrons will propagate in the same direction with similar amplitudes and different phases. The two beams will interfere with each other after passing through a certain distance of spin-orbit region. This effect just resembles the interference of polarization of light passing through wave plate. This quantum interference will shed light on quantum information processing and quantum computation.

Time-dependent quantum dynamics study of the F + C2H6 → HF + C2H5 reaction

2021 ◽  
Author(s):  
Delu Gao ◽  
Dunyou Wang
Keyword(s):  
Energy Efficiency ◽  
Wave Packet ◽  
Cross Sections ◽  
Ground State ◽  
Rate Constants ◽  
Quantum Dynamics ◽  
Reaction Dynamics ◽  
Time Dependent ◽  
Quantum Reaction

The reaction probabilities, integral cross sections, energy efficiency and rate constants are investigated for the F + C2H6 reaction with a quantum reaction dynamics, wave-packet method. The ground-state integer cross...

Sign in / Sign up

Export Citation Format

Share Document