Reference free, high-precision measurements of transition energies in few electron argon ions

2013 ◽  
Author(s):  
Csilla I. Szabo ◽  
Pedro Amaro ◽  
Mauro Guerra ◽  
Sophie Schlesser ◽  
Alexander Gumberidze ◽  
...  
Keyword(s):  
High Precision ◽  
Precision Measurements ◽  
Transition Energies ◽  
Argon Ions

scholarly journals High-precision measurements of n=2→n=1 transition energies and level widths in He- and Be-like argon ions

2018 ◽  
Vol 97 (3) ◽  
Author(s):  
J. Machado ◽  
C. I. Szabo ◽  
J. P. Santos ◽  
P. Amaro ◽  
M. Guerra ◽  
...  
Keyword(s):  
High Precision ◽  
Precision Measurements ◽  
Transition Energies ◽  
Argon Ions

Article

1998 ◽  
Vol 76 (9) ◽  
pp. 679-698 ◽  
Author(s):  
GWF Drake ◽  
W C Martin
Keyword(s):  
High Precision ◽  
Scaling Law ◽  
Precision Measurements ◽  
Ionization Energies ◽  
Transition Energies ◽  
Empirical Estimates ◽  
Comprehensive Listing ◽  
Semi Empirical ◽  
S States ◽  
Asymptotic Scaling

Ionization energies for several of the lower lying S- and P-states of helium are deduced from a combination of theory and a variety of high-precision measurements of transition energies. High-precision variational methods are reviewed and used to subtract the nonrelativistic energy and lowest order α2 au relativistic corrections from the ionization energies. The remaining quantum electrodynamic (QED) shift of order α3 au and higher is calculated in an extended Kabir–Salpeter formalism and compared with experiment. The comparison verifies the usefulness of the Kabir–Salpeter formalism for terms at least up to order α4 au, and it verifies an asymptotic 1/n3 scaling law for the two-electron corrections to the Bethe logarithm. The asymptotic scaling law is used to obtain improved semi-empirical estimates for the ionization energies of the higher lying 1sns 1S and 3S states up to n = 10. A revised comprehensive listing is given for the ionization energies of all states of helium up to n = 10 and angular momentum L = 7, together with quantum defect extrapolations for the S-states. PACS Nos.: 31.15.Pf, 31.30.Jv, and 32.10.Hq

Prospects for high precision measurements on muonic atoms at the front end of a muon collider

1998 ◽  
Author(s):  
D. Kawall ◽  
M. G. Boshier ◽  
V. W. Hughes ◽  
K. Jungmann ◽  
W. Liu ◽  
...  
Keyword(s):  
High Precision ◽  
Precision Measurements ◽  
Muonic Atoms ◽  
Front End ◽  
Muon Collider

Cold atom interferometry for inertial sensing in the field

2020 ◽  
Vol 9 (5) ◽  
pp. 221-225
Author(s):  
Ravi Kumar ◽  
Ana Rakonjac
Keyword(s):  
High Precision ◽  
Cold Atoms ◽  
Cold Atom ◽  
Atom Interferometry ◽  
Precision Measurements ◽  
Inertial Sensing ◽  
Fundamental Physics ◽  
Recent Developments ◽  
Resource Exploration ◽  
Atom Interferometers

AbstractAtom interferometry is one of the most promising technologies for high precision measurements. It has the potential to revolutionise many different sectors, such as navigation and positioning, resource exploration, geophysical studies, and fundamental physics. After decades of research in the field of cold atoms, the technology has reached a stage where commercialisation of cold atom interferometers has become possible. This article describes recent developments, challenges, and prospects for quantum sensors for inertial sensing based on cold atom interferometry techniques.

Analytical Developments for High-Precision Measurements of W Isotopes in Iron Meteorites

2007 ◽  
Vol 79 (8) ◽  
pp. 3148-3154 ◽  
Author(s):  
Liping Qin ◽  
Nicolas Dauphas ◽  
Philip E. Janney ◽  
Meenakshi Wadhwa
Keyword(s):  
High Precision ◽  
Precision Measurements ◽  
Iron Meteorites

High-Precision Measurements of Lower Atmospheric Temperature Based on Pure Rotational Raman Lidar

2015 ◽  
Vol 58 (4) ◽  
pp. 313-324 ◽  
Author(s):  
LI Ya-Juan ◽  
SONG Sha-Lei ◽  
LI Fa-Quan ◽  
CHENG Xue-Wu ◽  
CHEN Zhen-Wei ◽  
...  
Keyword(s):  
High Precision ◽  
Atmospheric Temperature ◽  
Precision Measurements ◽  
Raman Lidar
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