Akopyan, LA;
Babij, TJ;
Lakhmanskiy, K;
Cassidy, DB;
Matveev, A;
(2021)
Line-shape modeling in microwave spectroscopy of the positronium n=2 fine-structure intervals.
Physical Review A
, 104
(6)
, Article 062810. 10.1103/physreva.104.062810.
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Abstract
We report numerical simulations of positronium experiments designed to measure the n = 2 fine-structure intervals. The simulations include all possible interference effects between all 20 states in the n = 1 and laser-excited n = 2 manifolds as well as representations of the electric and magnetic fields present in the waveguides used in the experiments. We find that rf wave reflection from the vacuum chamber walls is a possible explanation of previously observed line-shape distortions and shifts. We also characterized several systematic effects, including those arising from quantum interference, that are likely to be significant for future measurements.
| Type: | Article |
|---|---|
| Title: | Line-shape modeling in microwave spectroscopy of the positronium n=2 fine-structure intervals |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/physreva.104.062810 |
| Publisher version: | https://doi.org/10.1103/PhysRevA.104.062810 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL 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 Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10140797 |
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