UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Photodetachment in cold ion traps: Rotational state selective C₂H⁻ losses from quantum dynamics

Mant, BP; Nötzold, M; González-Sánchez, L; Wester, R; Gianturco, FA; (2020) Photodetachment in cold ion traps: Rotational state selective C₂H⁻ losses from quantum dynamics. European Physical Journal D , 74 , Article 134. 10.1140/epjd/e2020-10043-6. Green open access

[thumbnail of Mant_2020_Article_PhotodetachmentInColdIonTraps.pdf]
Preview
Text
Mant_2020_Article_PhotodetachmentInColdIonTraps.pdf - Published Version

Download (702kB) | Preview

Abstract

We present a computational investigation of the photodetachment (PD) dynamics of C2H− in its ground, electronic 1Σ state, cooled in an ion trap with He as a buffer gas. Our analysis employs a range of PD rates from quantum dynamics, selective choices of the anion’s initial rotational state populations as the laser is switched on, and different operational trap conditions. Our results show that a variety of outcomes for the initial state-dependent PD process is possible by selecting different initial conditions in the cold trap, the latter generating a dynamical interplay between the anion’s populations of rotational states, induced by the buffer gas, and the chosen laser frequency and laser power. Specific parameter selections during the PD process will be shown to cause different abundances of the rotational states of the anion in the trap.

Type: Article
Title: Photodetachment in cold ion traps: Rotational state selective C₂H⁻ losses from quantum dynamics
Open access status: An open access version is available from UCL Discovery
DOI: 10.1140/epjd/e2020-10043-6
Publisher version: https://doi.org/10.1140/epjd/e2020-10043-6
Language: English
Additional information: This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10105383
Downloads since deposit
0Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item