Radiation generated by the ultrafast migration of a positive charge following the ionization of a molecular system
Electronic many-body effects alone can be the driving force for an ultrafast migration of a positive charge created upon ionization of molecular systems. Here we show that this purely electronic phenomenon generates a characteristic IR radiation. The situation when the initial ionic wave packet is p...
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| Published in | Physical review letters Vol. 106; no. 5; p. 053001 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
31.01.2011
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| Online Access | Get more information |
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| Summary: | Electronic many-body effects alone can be the driving force for an ultrafast migration of a positive charge created upon ionization of molecular systems. Here we show that this purely electronic phenomenon generates a characteristic IR radiation. The situation when the initial ionic wave packet is produced by a sudden removal of an electron is also studied. It is shown that in this case a much stronger UV emission is generated. This emission appears as an ultrafast response of the remaining electrons to the perturbation caused by the sudden ionization and as such is a universal phenomenon to be expected in every multielectron system. |
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| ISSN: | 1079-7114 |
| DOI: | 10.1103/physrevlett.106.053001 |