Probing QED and fundamental constants through laser spectroscopy of vibrational transitions in HD+

Autor: J. Biesheuvel, J.-Ph. Karr, L. Hilico, K. S. E. Eikema, W. Ubachs, J. C. J. Koelemeij

Publikováno v: Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)

Molecular hydrogen ions, the simplest molecules in nature, constitute a benchmark system for tests of quantum electrodynamics in complex forms of matter. Here, the authors report on a laser spectroscopic frequency measurement of a transition in HD+in

Externí odkaz: https://doaj.org/article/7879399ed9814f5f937fda0d68c3c062

Proton-electron mass ratio from laser spectroscopy of HD

Autor: Sayan, Patra, M, Germann, J-Ph, Karr, M, Haidar, L, Hilico, V I, Korobov, F M J, Cozijn, K S E, Eikema, W, Ubachs, J C J, Koelemeij

Publikováno v: Science (New York, N.Y.). 369(6508)

Recent mass measurements of light atomic nuclei in Penning traps have indicated possible inconsistencies in closely related physical constants such as the proton-electron and deuteron-proton mass ratios. These quantities also influence the predicted

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::8e4aefb7c1c487bfd727fb961b3a3b94
https://pubmed.ncbi.nlm.nih.gov/32883846

Effect of soil temperature on optical frequency transfer through unidirectional dense-wavelength-division-multiplexing fiber-optic links

Autor: T. J. Pinkert, O. Böll, L. Willmann, G. S. M. Jansen, E. A. Dijck, B. G. H. M. Groeneveld, R. Smets, F. C. Bosveld, W. Ubachs, K. Jungmann, K. S. E. Eikema, J. C. J. Koelemeij

Publikováno v: Applied Optics, 54(4), 728-738. Optical Society of American (OSA)
Pinkert, T J, Boll, O, Willmann, L, Jansen, G S M, Dijck, E A, Groeneveld, B G H M, Smets, R, Bosveld, F C, Ubachs, W M G, Jungmann, K, Eikema, K S E & Koelemeij, J C J 2015, ' Effect of soil temperature on optical frequency transfer through unidirectional dense-wavelength-division-multiplexing fiber-optic links ', Applied Optics, vol. 54, no. 4, pp. 728-738 . https://doi.org/10.1364/AO.54.000728
Applied Optics, 54(4), 728-738. The Optical Society

Results of optical frequency transfer over a carrier-grade dense-wavelength-division-multiplexing(DWDM) optical fiber network are presented. The relation between soil temperature changes on a buriedoptical fiber and frequency changes of an optical ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::775bd88797506de295b735214bcb7ac2
https://doi.org/10.1364/ao.54.000728