Quantum control via a genetic algorithm of the field ionization pathway of a Rydberg electron
| Autor: | Xinyue Kang, Zhimin Cheryl Liu, Thomas J. Carroll, Vincent C. Gregoric, Zoe A. Rowley, Michael W. Noel |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Field (physics) Atomic Physics (physics.atom-ph) FOS: Physical sciences Electron 01 natural sciences Physics - Atomic Physics 010305 fluids & plasmas symbols.namesake Field electron emission Ionization Electric field Field desorption 0103 physical sciences Principal quantum number Rydberg formula symbols Physics::Atomic Physics Atomic physics 010306 general physics |
| Zdroj: | Physical Review A. 96 |
| ISSN: | 2469-9934 2469-9926 |
| DOI: | 10.1103/physreva.96.023403 |
| Popis: | Quantum control of the pathway along which a Rydberg electron field ionizes is experimentally and computationally demonstrated. Selective field ionization is typically done with a slowly rising electric field pulse. The $(1/n^*)^4$ scaling of the classical ionization threshold leads to a rough mapping between arrival time of the electron signal and principal quantum number of the Rydberg electron. This is complicated by the many avoided level crossings that the electron must traverse on the way to ionization, which in general leads to broadening of the time-resolved field ionization signal. In order to control the ionization pathway, thus directing the signal to the desired arrival time, a perturbing electric field produced by an arbitrary waveform generator is added to a slowly rising electric field. A genetic algorithm evolves the perturbing field in an effort to achieve the target time-resolved field ionization signal. Corrected minor typographic errors and changed the title |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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