### Abstract

We theoretically investigate electron emission process from a dimer generated by swift highly charged ions. The process under consideration is dealt with a non-perturbative approach by solving the time-dependent Schrödinger equation on a two-dimensional spatial grid. Numerical calculations show rich structures related to the multiple scattering paths of the electron prior to emission. This manifests by the emergence of additional oscillations with high-frequency superimposed on the Young-type oscillatory structure in the observed electron-ejected spectrum. This is not the case when calculations are performed based on the superposition principle, in which the final wave function is just a coherent sum of component wave functions described the electron emission from two-independent atoms. Within this assumption, only a direct electron emission process is taken into account. We find that contributions arising from these multiple scattering paths modify the dynamic electron emission process, and therefore, show the incorrect applicability of the above-mentioned principle, in concordance with the recent findings based on a simple three-slit interference experiment, reported in Sawant et al. (2014).

Original language | English |
---|---|

Pages (from-to) | 714-717 |

Number of pages | 4 |

Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |

Volume | 406 |

DOIs | |

Publication status | Published - Sep 1 2017 |

### Fingerprint

### Keywords

- Coherent electron emission process
- Ion-molecule collisions
- Multi-scattering effects
- Superposition principle

### ASJC Scopus subject areas

- Nuclear and High Energy Physics
- Instrumentation

### Cite this

*Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms*,

*406*, 714-717. https://doi.org/10.1016/j.nimb.2017.03.163

**Quantum interferences induced by multiple scattering paths of the electron prior to emission in large molecules.** / Agueny, H.; Makhoute, A.; Tőkési, K.; Dubois, A.; Hansen, J. P.

Research output: Contribution to journal › Article

*Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms*, vol. 406, pp. 714-717. https://doi.org/10.1016/j.nimb.2017.03.163

}

TY - JOUR

T1 - Quantum interferences induced by multiple scattering paths of the electron prior to emission in large molecules

AU - Agueny, H.

AU - Makhoute, A.

AU - Tőkési, K.

AU - Dubois, A.

AU - Hansen, J. P.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - We theoretically investigate electron emission process from a dimer generated by swift highly charged ions. The process under consideration is dealt with a non-perturbative approach by solving the time-dependent Schrödinger equation on a two-dimensional spatial grid. Numerical calculations show rich structures related to the multiple scattering paths of the electron prior to emission. This manifests by the emergence of additional oscillations with high-frequency superimposed on the Young-type oscillatory structure in the observed electron-ejected spectrum. This is not the case when calculations are performed based on the superposition principle, in which the final wave function is just a coherent sum of component wave functions described the electron emission from two-independent atoms. Within this assumption, only a direct electron emission process is taken into account. We find that contributions arising from these multiple scattering paths modify the dynamic electron emission process, and therefore, show the incorrect applicability of the above-mentioned principle, in concordance with the recent findings based on a simple three-slit interference experiment, reported in Sawant et al. (2014).

AB - We theoretically investigate electron emission process from a dimer generated by swift highly charged ions. The process under consideration is dealt with a non-perturbative approach by solving the time-dependent Schrödinger equation on a two-dimensional spatial grid. Numerical calculations show rich structures related to the multiple scattering paths of the electron prior to emission. This manifests by the emergence of additional oscillations with high-frequency superimposed on the Young-type oscillatory structure in the observed electron-ejected spectrum. This is not the case when calculations are performed based on the superposition principle, in which the final wave function is just a coherent sum of component wave functions described the electron emission from two-independent atoms. Within this assumption, only a direct electron emission process is taken into account. We find that contributions arising from these multiple scattering paths modify the dynamic electron emission process, and therefore, show the incorrect applicability of the above-mentioned principle, in concordance with the recent findings based on a simple three-slit interference experiment, reported in Sawant et al. (2014).

KW - Coherent electron emission process

KW - Ion-molecule collisions

KW - Multi-scattering effects

KW - Superposition principle

UR - http://www.scopus.com/inward/record.url?scp=85019662897&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85019662897&partnerID=8YFLogxK

U2 - 10.1016/j.nimb.2017.03.163

DO - 10.1016/j.nimb.2017.03.163

M3 - Article

AN - SCOPUS:85019662897

VL - 406

SP - 714

EP - 717

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

SN - 0168-583X

ER -