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Cold Ion Chemistry - Experiments within a Rydberg Orbit

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Publications

Communication: Heavy-Rydberg states of HD and the electron affinity of the deuterium atom

Author(s): Maximilian Beyer, Frédéric Merkt
Published in: The Journal of Chemical Physics, Issue 149/3, 2018, Page(s) 031102, ISSN 0021-9606
DOI: 10.1063/1.5043186

Metrology of high- n Rydberg states of molecular hydrogen with Δ ν / ν = 2 × 10 −

Author(s): Maximilian Beyer, Nicolas Hölsch, Josef A. Agner, Johannes Deiglmayr, Hansjürg Schmutz, Frédéric Merkt
Published in: Physical Review A, Issue 97/1, 2018, Page(s) 012501, ISSN 2469-9926
DOI: 10.1103/physreva.97.012501

Hyperfine-interaction-induced g/u mixing and its implication on the existence of the first excited vibrational level of the A+ Σu+2 state of H2+ and on the scattering length of the H + H + collision

Author(s): Maximilian Beyer, Frédéric Merkt
Published in: The Journal of Chemical Physics, Issue 149/21, 2018, Page(s) 214301, ISSN 0021-9606
DOI: 10.1063/1.5046147

Dissociation Energy of the Hydrogen Molecule at 10 − 9 Accuracy

Author(s): 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
Published in: Physical Review Letters, Issue 121/1, 2018, Page(s) 013001, ISSN 0031-9007
DOI: 10.1103/physrevlett.121.013001

Nonadiabatic effects on the positions and lifetimes of the low-lying rovibrational levels of the GK 1 Σ+g and H 1 Σ+g states of H 2

Author(s): Nicolas Hölsch, Maximilian Beyer, Frédéric Merkt
Published in: Physical Chemistry Chemical Physics, Issue 20/42, 2018, Page(s) 26837-26845, ISSN 1463-9076
DOI: 10.1039/c8cp05233f

High-resolution photoelectron spectroscopy and calculations of the highest bound levels of ${{\rm{D}}}_{2}^{+}$ below the first dissociation threshold

Author(s): Maximilian Beyer, Frédéric Merkt
Published in: Journal of Physics B: Atomic, Molecular and Optical Physics, Issue 50/15, 2017, Page(s) 154005, ISSN 0953-4075
DOI: 10.1088/1361-6455/aa7ac9

Molecular-beam resonance method with Zeeman-decelerated samples: Application to metastable helium molecules

Author(s): Luca Semeria, Paul Jansen, Gloria Clausen, Josef A. Agner, Hansjürg Schmutz, Frédéric Merkt
Published in: Physical Review A, Issue 98/6, 2018, Page(s) 062518, ISSN 2469-9926
DOI: 10.1103/physreva.98.062518

Fundamental vibration frequency and rotational structure of the first excited vibrational level of the molecular helium ion (He2+)

Author(s): Paul Jansen, Luca Semeria, Frédéric Merkt
Published in: The Journal of Chemical Physics, Issue 149/15, 2018, Page(s) 154302, ISSN 0021-9606
DOI: 10.1063/1.5051089

PFI-ZEKE photoelectron spectroscopy of positively charged ions: illustration with Mg+

Author(s): M. Génévriez, D. Wehrli, J.A. Agner, F. Merkt
Published in: International Journal of Mass Spectrometry, Issue 435, 2019, Page(s) 209-216, ISSN 1387-3806
DOI: 10.1016/j.ijms.2018.10.017

Half-Collision Approach to Cold Chemistry: Shape Resonances, Elastic Scattering, and Radiative Association in the H + + H

Author(s): Maximilian Beyer, Frédéric Merkt
Published in: Physical Review X, Issue 8/3, 2018, Page(s) 031085, ISSN 2160-3308
DOI: 10.1103/physrevx.8.031085

Determination of the Spin-Rotation Fine Structure of He 2 +

Author(s): Paul Jansen, Luca Semeria, Frédéric Merkt
Published in: Physical Review Letters, Issue 120/4, 2018, Page(s) 043001, ISSN 0031-9007
DOI: 10.1103/physrevlett.120.043001

Fluorescence-lifetime-limited trapping of Rydberg helium atoms on a chip


Published in: ISSN 0026-8976
DOI: 10.1080/00268976.2019.1600060

Precision measurement of the ionization energy and quantum defects of K 39 i

Author(s): Michael Peper, Felix Helmrich, Jonas Butscher, Josef Anton Agner, Hansjürg Schmutz, Frédéric Merkt, Johannes Deiglmayr
Published in: Physical Review A, Issue 100/1, 2019, ISSN 2469-9926
DOI: 10.1103/PhysRevA.100.012501

Roadmap on photonic, electronic and atomic collision physics: III. Heavy particles: with zero to relativistic speeds

Author(s): Friedrich Aumayr, Kiyoshi Ueda, Emma Sokell, Stefan Schippers, Hossein Sadeghpour, Frédéric Merkt, Thomas F Gallagher, F Barry Dunning, Paul Scheier, Olof Echt, Tom Kirchner, Stephan Fritzsche, Andrey Surzhykov, Xinwen Ma, Roberto Rivarola, Omar Fojon, Lokesh Tribedi, Emily Lamour, José R Crespo López-Urrutia, Yuri A Litvinov, Vladimir Shabaev, Henrik Cederquist, Henning Zettergren, Marika S
Published in: Journal of Physics B: Atomic, Molecular and Optical Physics, Issue 52/17, 2019, Page(s) 171003, ISSN 0953-4075
DOI: 10.1088/1361-6455/ab26ea

Autoionization rates of core-excited magnesium Rydberg atoms in electric fields using the core fluorescence as a reference

Author(s): D. Wehrli, M. Génévriez, F. Merkt
Published in: Physical Review A, Issue 100/1, 2019, ISSN 2469-9926
DOI: 10.1103/PhysRevA.100.012515

Benchmarking Theory with an Improved Measurement of the Ionization and Dissociation Energies of H 2

Author(s): Nicolas Hölsch, Maximilian Beyer, Edcel J. Salumbides, Kjeld S. E. Eikema, Wim Ubachs, Christian Jungen, Frédéric Merkt
Published in: Physical Review Letters, Issue 122/10, 2019, ISSN 0031-9007
DOI: 10.1103/PhysRevLett.122.103002

The adiabatic ionisation energy of CO 2


Published in: ISSN 0026-8976
DOI: 10.1080/00268976.2019.1600061

Determination of the Interval between the Ground States of Para- and Ortho- H 2

Author(s): M. Beyer, N. Hölsch, J. Hussels, C.-F. Cheng, E. J. Salumbides, K. S. E. Eikema, W. Ubachs, Ch. Jungen, F. Merkt
Published in: Physical Review Letters, Issue 123/16, 2019, Page(s) 163002, ISSN 0031-9007
DOI: 10.1103/physrevlett.123.163002

Determination of the Interaction Potential and Rovibrational Structure of the Ground Electronic State of MgAr + Using PFI-ZEKE Photoelectron Spectroscopy

Author(s): Dominik Wehrli, Matthieu Génévriez, Carla Kreis, Josef A. Agner, Frédéric Merkt
Published in: The Journal of Physical Chemistry A, Issue 124/2, 2019, Page(s) 379-385, ISSN 1089-5639
DOI: 10.1021/acs.jpca.9b10435

Experimental and theoretical study of core-excited 3 p n d Rydberg series of Mg

Author(s): Matthieu Génévriez, Dominik Wehrli, Frédéric Merkt
Published in: Physical Review A, Issue 100/3, 2019, Page(s) 032517, ISSN 2469-9926
DOI: 10.1103/physreva.100.032517

Magic Rydberg-Rydberg transitions in electric fields

Author(s): Michael Peper, Johannes Deiglmayr, Frédéric Merkt, Carla Sanna, H. B. van Linden van den Heuvell
Published in: Physical Review A, Issue 100/3, 2019, Page(s) 032512, ISSN 2469-9926
DOI: 10.1103/physreva.100.032512

Precision Measurements in Few-Electron Molecules: The Ionization Energy of Metastable He 4

Author(s): Luca Semeria, Paul Jansen, Gian-Marco Camenisch, Federico Mellini, Hansjürg Schmutz, Frédéric Merkt
Published in: Physical Review Letters, Issue 124/21, 2020, ISSN 0031-9007
DOI: 10.1103/physrevlett.124.213001

Spectroscopy of Highly Excited States of the Hydrogen Atom

Author(s): Simon Scheidegger, Frédéric Merkt
Published in: CHIMIA International Journal for Chemistry, Issue 74/4, 2020, Page(s) 285-288, ISSN 0009-4293
DOI: 10.2533/chimia.2020.285