Flack, R;
Monachello, V;
Hiley, B;
Barker, P;
(2018)
A Method for Measuring the Weak Value of Spin for Metastable Atoms.
Entropy
, 20
(8)
, Article 566. 10.3390/e20080566.
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Abstract
A method for measuring the weak value of spin for atoms is proposed using a variant of the original Stern–Gerlach apparatus. A full simulation of an experiment for observing the real part of the weak value using the impulsive approximation has been carried out. Our predictions show a displacement of the beam of helium atoms in the metastable 2 3S1 state, ∆w, that is within the resolution of conventional microchannel plate detectors indicating that this type of experiment is feasible. Our analysis also determines the experimental parameters that will give an accurate determination of the weak value of spin. Preliminary experimental results are shown for helium, neon and argon in the 23S1 and 3P2 metastable states, respectively
| Type: | Article |
|---|---|
| Title: | A Method for Measuring the Weak Value of Spin for Metastable Atoms |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3390/e20080566 |
| Publisher version: | http://doi.org/10.3390/e20080566 |
| Language: | English |
| Additional information: | Copyright © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | weak measurement; transition probability amplitude; atomic metastable states |
| 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/10056112 |
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