Zobrazeno 1 - 10
of 24
pro vyhledávání: '"E. J. Salumbides"'
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
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023209 (2020)
A saturation spectroscopy measurement of the P(1) line of the (2-0) band in HD is performed in a sensitive cavity-enhanced optical setup involving frequency comb calibration. The spectral signature is that of a Lamb peak, in agreement with a density-
Externí odkaz:
https://doaj.org/article/dfb7b79309924b778c85686725651e9a
Autor:
K.-F. Lai, P. Czachorowski, M. Schlösser, M. Puchalski, J. Komasa, K. Pachucki, W. Ubachs, E. J. Salumbides
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 033124 (2019)
First-principles calculations are presented for fundamental vibrational splitting energies of tritium-bearing molecular hydrogen species with the improved treatment of the nonrelativistic, relativistic, and quantum electrodynamic energy contributions
Externí odkaz:
https://doaj.org/article/de07cb160e634af8bccc274b603922ac
Publikováno v:
Astrophysical Journal, Supplement Series, 260(2):37, 1-14. IOP Publishing Ltd.
Lai, K F, Manalili, D, Ubachs, W, Cooke, R, Pettini, M, De Oliveira, N & Salumbides, E J 2022, ' Vacuum Ultraviolet Fourier-transform Spectroscopy of 16 O and 18 O ', Astrophysical Journal, Supplement Series, vol. 260, no. 2, 37, pp. 1-14 . https://doi.org/10.3847/1538-4365/ac6350
The Astrophysical Journal Supplement Series, 2022, Vol.260(2), pp.37 [Peer Reviewed Journal]
Lai, K F, Manalili, D, Ubachs, W, Cooke, R, Pettini, M, De Oliveira, N & Salumbides, E J 2022, ' Vacuum Ultraviolet Fourier-transform Spectroscopy of 16 O and 18 O ', Astrophysical Journal, Supplement Series, vol. 260, no. 2, 37, pp. 1-14 . https://doi.org/10.3847/1538-4365/ac6350
The Astrophysical Journal Supplement Series, 2022, Vol.260(2), pp.37 [Peer Reviewed Journal]
A spectroscopic study of atomic oxygen (O i) is performed using the Fourier-transform vacuum ultraviolet (VUV) spectrometer at the Dichroïsme Et Spectroscopie par Interaction avec le Rayonnement Synchrotron beamline of the SOLEIL synchrotron. Transi
Publikováno v:
Physical Review A, 105(6):062823, 1-8. American Physical Society
Cozijn, F M J, Diouf, M L, Hermann, V, Salumbides, E J, Schlösser, M & Ubachs, W 2022, ' Rotational level spacings in HD from vibrational saturation spectroscopy ', Physical Review A, vol. 105, no. 6, 062823, pp. 1-8 . https://doi.org/10.1103/PhysRevA.105.062823
Cozijn, F M J, Diouf, M L, Hermann, V, Salumbides, E J, Schlösser, M & Ubachs, W 2022, ' Rotational level spacings in HD from vibrational saturation spectroscopy ', Physical Review A, vol. 105, no. 6, 062823, pp. 1-8 . https://doi.org/10.1103/PhysRevA.105.062823
The R(1), R(3) and P(3) ro-vibrational transitions in the (2-0) overtone band of the HD molecule are measured in Doppler-free saturation using the technique of NICE-OHMS spectroscopy. For the P(3) line, hitherto not observed in saturation, we report
Publikováno v:
Physical review letters. 127(18)
Shape resonances in H_{2}, produced as reaction intermediates in the photolysis of H_{2}S precursor molecules, are measured in a half-collision approach. Before disintegrating into two ground state H atoms, the reaction is quenched by two-photon Dopp
Publikováno v:
Physical chemistry chemical physics : PCCP. 22(16)
High-resolution coherent Raman spectroscopic measurements of all three tritium-containing molecular hydrogen isotopologues T2, DT and HT were performed to determine the ground electronic state fundamental Q-branch (v = 0 → 1, ΔJ = 0) transition fr
Autor:
C-F, Cheng, J, Hussels, M, Niu, H L, Bethlem, K S E, Eikema, E J, Salumbides, W, Ubachs, M, Beyer, N, Hölsch, J A, Agner, F, Merkt, L-G, Tao, S-M, Hu, Ch, Jungen
Publikováno v:
Physical review letters. 121(1)
The ionization energy of ortho-H_{2} has been determined to be E_{I}^{o}(H_{2})/(hc)=124 357.238 062(25) cm^{-1} from measurements of the GK(1,1)-X(0,1) interval by Doppler-free, two-photon spectroscopy using a narrow band 179-nm laser source and the
Publikováno v:
Physical Review Letters
Publikováno v:
Physical review letters. 120(4)
Molecular hydrogen and its isotopic and ionic species are benchmark systems for testing quantum chemical theory. Advances in molecular energy structure calculations enable the experimental verification of quantum electrodynamics and potentially a det