Journal
CHINESE PHYSICS LETTERS
Volume 39, Issue 12, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/0256-307X/39/12/123402
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Funding
- National Key Research and Development Program of China [2017YFA0304203]
- Program for Changjiang Scholars and Innovative Research Team [IRT17R70]
- National Natural Science Foundation of China [12004193, 11904215]
- 111 Project [D18001]
- Fund for Shanxi 1331 Project Key Subjects Construction
- Hundred Talent Program of Shanxi Province
- NJUPT-SF [NY220089]
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This study presents the first case of charge migration that induces chiral 3D dipolar motion, which can be achieved with well-designed laser pulses.
Electronic charge of molecules can move on time scales when the nuclei stand practically still, from few hundreds of attoseconds to few femtoseconds. This ultrafast process is called charge migration. A typical consequence is rapid change of electronic dipole, which points to the center of charge. Corresponding linear (one-dimensional, 1D) and planar (2D) dipolar motions have already been well documented. Here we construct the first case of charge migration which causes chiral 3D dipolar motion, specifically along a helix about oriented iodo-acetylene (HCCI). Quantum dynamics simulations show that this can be induced by well-designed laser pulses.
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