Next Article in Journal
Progress in Finding New Energy Levels Using Laser Spectroscopy
Previous Article in Journal
Parametric Calculations of Radiative Decay Rates for Magnetic Dipole and Electric Quadrupole Transitions in Tm IV, Yb V, and Er IV
Previous Article in Special Issue
Oriented Polar Molecules in a Solid Inert-Gas Matrix: A Proposed Method for Measuring the Electric Dipole Moment of the Electron
Article Menu

Export Article

Open AccessArticle
Atoms 2018, 6(3), 53; https://doi.org/10.3390/atoms6030053

Optical Pumping of TeH+: Implications for the Search for Varying mp/me

1
Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
2
Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto-SP 14040-901, Brazil
3
Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo-SP 05508-000, Brazil
*
Author to whom correspondence should be addressed.
Received: 11 July 2018 / Revised: 28 August 2018 / Accepted: 7 September 2018 / Published: 17 September 2018
(This article belongs to the Special Issue High Precision Measurements of Fundamental Constants)
Full-Text   |   PDF [739 KB, uploaded 19 September 2018]   |  

Abstract

Molecular overtone transitions provide optical frequency transitions sensitive to variation in the proton-to-electron mass ratio ( μ m p / m e ). However, robust molecular state preparation presents a challenge critical for achieving high precision. Here, we characterize infrared and optical-frequency broadband laser cooling schemes for TeH + , a species with multiple electronic transitions amenable to sustained laser control. Using rate equations to simulate laser cooling population dynamics, we estimate the fractional sensitivity to μ attainable using TeH + . We find that laser cooling of TeH + can lead to significant improvements on current μ variation limits. View Full-Text
Keywords: time variation of constants; proton-electron mass ratio; molecular ion; laser cooling time variation of constants; proton-electron mass ratio; molecular ion; laser cooling
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Stollenwerk, P.R.; Kokish, M.G.; de Oliveira-Filho, A.G.S.; Ornellas, F.R.; Odom, B.C. Optical Pumping of TeH+: Implications for the Search for Varying mp/me. Atoms 2018, 6, 53.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Atoms EISSN 2218-2004 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top