Zobrazeno 1 - 10 of 173 pro vyhledávání: '"J-Ph Karr"'
1
Akademický článek
Three-body QED test and fifth-force constraint from vibrations and rotations of HD^{+}
Autor: M. Germann, S. Patra, J.-Ph. Karr, L. Hilico, V. I. Korobov, E. J. Salumbides, K. S. E. Eikema, W. Ubachs, J. C. J. Koelemeij
Publikováno v: Physical Review Research, Vol 3, Iss 2, p L022028 (2021)
We present a parts-per-million test of quantum electrodynamics (QED) in the HD^{+} molecular hydrogen ion, improving on previous tests based on vibrational and rotational transitions by factors of 76 and 1.4, respectively. The test is performed follo
Externí odkaz: https://doaj.org/article/e43088a0d3514149a48a7f37acbbc988
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3
Akademický článek
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
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4
Proton-electron mass ratio from laser spectroscopy of HD+ at the part-per-trillion level
Autor: M. Haidar, M. Germann, Wim Ubachs, Kjeld S. E. Eikema, Vladimir I. Korobov, Sayan Patra, F. M. J. Cozijn, Laurent Hilico, Jeroen C. J. Koelemeij, J.-Ph. Karr
Publikováno v: Science
Patra, S, Germann, M, Karr, J P, Haidar, M, Hilico, L, Korobov, V I, Cozijn, F M J, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2020, ' Proton-electron mass ratio from laser spectroscopy of HD + at the part-per-trillion level ', Science (New York, N.Y.), vol. 369, no. 6508, pp. 1238-1241 . https://doi.org/10.1126/science.aba0453
Science (New York, N.Y.), 369(6508), 1238-1241. American Association for the Advancement of Science
Science, 2020, 369 (6508), pp.1238-1241. ⟨10.1126/science.aba0453⟩
A very precise ratio The value of the ratio of the masses of the proton and the electron has a bearing on the values of other physical constants. This ratio is known to a very high precision. Patra et al. improved this precision even further by measu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e7d3e0577870276d50f4193b8ab03e2
https://research.vu.nl/en/publications/845375fd-559f-44d0-9760-010845a5d068
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5
Ro-vibrational spin-averaged transitions in the hydrogen molecular ions
Autor: Vladimir I. Korobov, J.-Ph. Karr
Publikováno v: Physical Review A
Physical Review A, American Physical Society 2021, 104 (3), ⟨10.1103/PhysRevA.104.032806⟩
Physical Review A, 2021, 104 (3), ⟨10.1103/PhysRevA.104.032806⟩
We reconsider the calculation of rovibrational transition frequencies in hydrogen molecular ions. Some previously neglected contributions, such as the deuteron polarizability, are included into consideration in comparison with our previous work. In p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90605e567b21ae6887989af1b8e1fb32
http://arxiv.org/abs/2107.14497
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6
Three-body QED test and fifth-force constraint from vibrations and rotations of HD+
Autor: Sayan Patra, J.-Ph. Karr, M. Germann, Wim Ubachs, K.S.E. Eikema, Vladimir I. Korobov, Jeroen C. J. Koelemeij, Laurent Hilico, Edcel J. Salumbides
Publikováno v: Physical Review Research
Phys.Rev.Res.
Phys.Rev.Res., 2021, 3 (2), pp.L022028. ⟨10.1103/PhysRevResearch.3.L022028⟩
Physical Review Research, 3(2):L022028, 1-6. American Physiological Society
Physical Review Research, 2021, 3 (2), pp.L022028. ⟨10.1103/PhysRevResearch.3.L022028⟩
Germann, M, Patra, S, Karr, J P, Hilico, L, Korobov, V I, Salumbides, E J, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2021, ' Three-body QED test and fifth-force constraint from vibrations and rotations of HD+ ', Physical Review Research, vol. 3, no. 2, L022028, pp. 1-6 . https://doi.org/10.1103/PhysRevResearch.3.L022028
International audience; We present a parts-per-million test of quantum electrodynamics (QED) in the HD+ molecular hydrogen ion, improving on previous tests based on vibrational and rotational transitions by factors of 76 and 1.4, respectively. The te
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09295542613c6ce2222137b7b93c46d6
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7
Nonrelativistic QED approach to the fine- and hyperfine-structure corrections of order mα6 and mα6(m/M) : Application to the hydrogen atom
Autor: M. Haidar, Zhen-Xiang Zhong, J.-Ph. Karr, Vladimir I. Korobov
Publikováno v: Physical Review A. 101
The nonrelativistic QED (NRQED) approach is applied to the calculation of relativistic corrections to the fine and hyperfine structure of hydrogenlike atoms at orders $m{\ensuremath{\alpha}}^{6}$ and $m{\ensuremath{\alpha}}^{6}(m/M)$. Results are fou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9fb2522107bc71b714da9695e642893f
https://doi.org/10.1103/physreva.101.022501
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8
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
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9
Proton-electron mass ratio from HD+ revisited
Autor: Sayan Patra, M. Germann, J-Ph Karr, Laurent Hilico, Jeroen C. J. Koelemeij, Vladimir I. Korobov
Publikováno v: Patra, S, Karr, J P, Hilico, L, Germann, M, Korobov, V I & Koelemeij, J C J 2018, ' Proton-electron mass ratio from HD + revisited ', Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 51, no. 2, 024003 . https://doi.org/10.1088/1361-6455/aa9b92
J.Phys.B
J.Phys.B, 2017, 51 (2), pp.024003. ⟨10.1088/1361-6455/aa9b92⟩
Journal of Physics B: Atomic, Molecular and Optical Physics, 51(2):024003. IOP Publishing Ltd.
J.Phys.B, 2018, 51, pp.024003. 〈10.1088/1361-6455/aa9b92〉
International audience; We present a new derivation of the proton-electron mass ratio from the hydrogen molecular ion, HD$^+$. The derivation entails the adjustment of the mass ratio in highly precise theory so as to reproduce accurately measured ro-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07c15ca39da64490f92db6ab34a82715
https://doi.org/10.1088/1361-6455/aa9b92
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10
High-precision spectroscopy of the HD+ molecule at the 1-p.p.b. level
Autor: Kjeld S. E. Eikema, J. Ph. Karr, Wim Ubachs, Jeroen C. J. Koelemeij, J. Biesheuvel, Laurent Hilico
Publikováno v: Biesheuvel, J, Karr, J P, Hilico, L, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2017, ' High-precision spectroscopy of the HD + molecule at the 1-p.p.b. level ', Applied Physics B. Lasers and Optics, vol. 123, no. 1, 23 . https://doi.org/10.1007/s00340-016-6576-8
Exploring the World with the Laser: Dedicated to Theodor Hänsch on his 75th Birthday, 267-307
STARTPAGE=267;ENDPAGE=307;TITLE=Exploring the World with the Laser
Exploring the World with the Laser ISBN: 9783319643458
Biesheuvel, J, Karr, J P, Hilico, L, Eikema, K S E, Ubachs, W & Koelemeij, J C J 2018, High-precision spectroscopy of the HD + molecule at the 1-p.p.b. level . in D Meschede, T Udem & T Esslinger (eds), Exploring the World with the Laser : Dedicated to Theodor Hänsch on his 75th Birthday . Springer International Publishing Switzerland, Cham, pp. 267-307 . https://doi.org/10.1007/978-3-319-64346-5_16
Applied Physics B
Applied Physics B-Laser and Optics
Applied Physics B-Laser and Optics, 2017, 123 (1), pp.23. ⟨10.1007/s00340-016-6576-8⟩
Applied Physics B. Lasers and Optics, 123(1):23. Springer Verlag
Recently we reported a high precision optical frequency measurement of the (v,L):(0,2)->(8,3) vibrational overtone transition in trapped deuterated molecular hydrogen (HD+) ions at 10 mK temperature. Achieving a resolution of 0.85 parts-per-billion (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12f28177f6a512e3dda8622e5fc47087
https://doi.org/10.1007/978-3-319-64346-5_16
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