Talks by Prof. Dr. Wim Ubachs


    Upcoming Talks

    Physics beyond the Standard Model from hydrogen molecules
    Colloquium University of Science and Technology China
    Hefei, China, 9 November 2017

    Molecules as probes for new physics: varying constants, chameleons, fifth forces and higher dimensions
    Lorentz Workshop: Dark energy in the laboratory
    Leiden, Netherlands, 15 November 2017

    Precision spectroscopy of molecular hydrogen and the search for new physics
    Colloquium Max Planck Institut fur Kernphysik, Heidelberg
    Heidelberg, Germany, 30 November 2017


    Scattering and absorption of molecules in the Earth’s atmosphere
    Colloquium: Huazhong University, Wuhan
    Wuhan, China, 6 November 2017

    Precision spectroscopy of molecular hydrogen and the search for new physics
    Nanolight, Symposium in honor of the landmark birthday of Niek van Hulst - ICFO
    ICFO Barcelona, Spain, 20 October 2017

    Physics beyond the Standard Model from molecules
    Colloquium Department of Physical Chemistry, Basel University
    Basel, Switzerland, 18 October 2017

    Physics beyond the Standard Model from molecules
    Colloquium AMOLF
    Amsterdam, Netherlands, 11 September 2017

    Precision spectroscopy in molecular hydrogen beams in search for new physics
    International Symposium on Molecular Beams
    Nijmegen, Netherlands, 29 June 2017

    SPECTROSCOPY OF HIGHLY CHARGED TIN IONS FOR AN EXTREME ULTRAVIOLET LIGHT SOURCE FOR LITHOGRAPHY
    International Symposium on Molecular Spectroscopy
    Champaign-Urbana, USA, 23 June 2017

    PRECISION SPECTROSCOPY OF MOLECULAR HYDROGEN AND THE SEARCH FOR NEW PHYSICS (invited)
    International Symposium on Molecular Spectroscopy
    Champaign-Urbana, USA, 22 June 2017

    Precision Spectroscopy of Molecular Hydrogen; Physics Beyond the Standard Model and the variation of fundamental constants
    Lecture series at School: Search for new physics with low-energy precision tests
    Ameland, Netherlands, 9-16 June 2017

    Search for a drifting proton-electron mass ratio from molecular H2
    The Hydride Toolbox
    Paris, France, 12-15 December 2016

    Search for Varying Constants and New Physics from molecular hydrogen
    Varying Constants and Fundamental Cosmology - VARCOSMOFUN' 16
    Szczecin, Poland, 12-17 September 2016

    Physics beyond the Standard Model from molecular hydrogen
    23rd International Conference on Spectral Line Shapes
    Torun, Poland, 19-24 June 2016

    Physics beyond the Standard Model from molecular hydrogen
    PSAS 2016; International Conference on Precision Physics of Simple Atomic Systems
    Jerusalem, Israel, 23 May 2016

    Spectroscopy of molecular hydrogen in the laboratory and at high red-shift to search for varying constants
    Colloquium Karlsruhe Institute of Technology
    Karlsruhe, Germany, 11 May 2016

    Search for a variation of fundamental constants from astronomical observations
    Colloquium ASTRON, Netherlands Institute for Radio Astronomy
    Dwingeloo, Netherlands, 10 Mar. 2016

    Precision spectroscopy of molecular hydrogen
    ICTP Winterschool on Optics 2016
    Trieste, Italy, 25 Feb. 2016

    Extreem ultraviolet licht voor steeds kleinere chips
    Viva Fysica ! 2016
    Amsterdam, Netherlands, 29 Jan. 2016

    Molecules in the early Universe and the nature of physical law
    FOM @ Veldhoven Meeting 2016
    Veldhoven, Netherlands, 20 Jan. 2016

    Search for new physics from astronomical observation of molecules
    ISSI/HISPAC Workshop on High Performance Clocks
    Bern, Switzerland, 4 Dec. 2015

    Precision spectroscopy on molecular hydrogen
    Spectroscopy seminar, Department of Chemistry ETH Zurich
    Zurich, Switzerland, 4 Dec. 2015

    Physics beyond the Standard Model from Molecules
    Symposium The Sound of Science, Twente University
    Enschede, Netherlands, 19 Nov. 2015

    Physics beyond the Standard Model from Molecules
    Colloquium Max Planck Institute fuer Quantenoptik
    Munchen, Germany, 3 Nov. 2015

    Precision measurements on H2 in search for new physics
    International Conference on Precision Physics and Fundamental Constants
    Budapest, Hungary, 12-16 Oct. 2015

    Physics beyond the Standard Model from Molecules (invited)
    HRMS 2015 Dijon
    Dijon, France, 24-28 Aug. 2015

    Physics beyond the Standard Model from Molecular hydrogen (invited)
    33rd International Symposium on Free Radicals
    Lake Tahoe, USA, 2-7 Aug. 2015

    Physics beyond the Standard Model from Molecular hydrogen spectroscopy
    Invited: Journal of Molecular Spectroscopy Lecture 2015
    International Symposium on Molecular Spectroscopy
    Champaign-Urbana, USA, 22-16 June 2015

    Light from the early Universe and the nature of physical law
    Fysica 2015
    Focus session: Light - International Year of Light 2015
    Eindhoven, Netherlands, 10 April 2015

    Research at the Advanced Research Center for Nanolithography
    27th NNV symposium on Plasma Physics (Program)
    Lunteren, Netherlands, 11 March 2015

    Molecular hydrogen in the photosphere of white dwarfs
    Photodissociation in Astrochemistry
    Leiden Observatory Workshop
    Leiden, Netherlands, 3-5 February 2015

    Light from the early Universe and the nature of physical law
    Light and Atoms; Celebration of the international Year of Light (invited)
    INRIM Italian Metrology Institute, Torino
    Torino, Italy, 27 Jan. 2015

    Zijn de Natuurconstanten constant ?
    Natuurkundig Gezelschap Utrecht
    Utrecht, Netherlands, 2 Dec. 2014

    The Quest for a varying proton-electron mass ratio
    ESO workshop: Cosmology and the Early Universe
    Munich, Germany, 19 Sept. 2014

    Testing Fundamental Physics from Spectra of simple Molecules
    Faculty Colloquium FEW VU
    Amsterdam, Netherlands, 4 Sept. 2014

    Precision Measurements on Molecules for Tests of Fundamental Physics
    EGAS (invited)
    Lille, France, 1 July 2014

    High Resolution Molecular spectroscopy of H2 at 10% the age of the Universe
    International Symposium on Molecular Spectroscopy
    Champaign-Urbana, USA, 19 June 2014

    Search for a variation of the proton-electron mass ratio from methanol observations
    International Symposium on Molecular Spectroscopy
    Champaign-Urbana, USA, 19 June 2014

    Search for drifting constants from extragalactic methanol
    Cosmology and Astronomy; Templeton Foundation
    Chicago, USA, 18 June 2014

    Physics Beyond the Standard Model from Molecules
    Colloquium NIKHEF
    Amsterdam, Netherlands, 13 June 2014

    Physics Beyond the Standard Model; exploring the constancy of physical law, forces beyond the Standard Model and the dimensionality of space-time from molecular spectroscopy
    Symposium Institute of Molecules and Materials, Radboud University (invited)
    Nijmegen, Netherlands, 19 May 2014

    Zijn Natuurconstanten Constant ?
    Diligentialezing
    Den Haag, 16 Dec. 2013

    Search for drifting constants and fifth forces from precision measurements on molecules
    31st SPP Physics Congres Philipines 2013 (invited)
    Cebu, Philipines, 23 Oct. 2013

    The H2 molecule; test of QED and varying constants
    Frontiers in Optics 2013; Laser Science XXIX, APS/DLS 29th annual meeting
    Orlando, Florida, 7 Oct. 2013

    A stringent limit on a varying proton-electron mass ratio from alcohol in the early Universe
    Dutch Astrochemistry Network
    Leiden, Netherlands, 20 Sept. 2013

    Search for new Physics from precision measurements on the hydrogen molecule
    Leopoldina Symposium (invited)
    Zurich, Switzerland, 12 Sept. 2013

    Search for variation of fundamental constants on a cosmological time scale
    Atomic Spectra and Oscillator Strengths for Astrophysical and Laboratory Plasmas - ASOS 11 (invited)
    Mons, Belgium, 7 Aug. 2013

    Frequency comparisons with molecular clocks; serach for fifth forces and varying constants
    Royal Society Workshop Chicheley Hall
    Buckinghamshire, England, 25 July 2013

    Probing varying constants and fifth forces from molecular hydrogen
    Colloquium University of Science and Technology China
    Hefei, China, 16 July 2013

    Novel Techniques in VUV high resolution Spectroscopy
    38th Conference on Vacuum Ultraviolet and X-ray physics (VUVX2013) (invited)
    Hefei, China, 15 July 2013

    Probing varying constants and fifth forces from molecular hydrogen
    Seminar TU Eindhoven
    Eindhoven, Netherlands, 25 June 2013

    Structure determination of non-linear hydrocarbon chains by deuterium labeling
    International Symposium on Molecular Spectroscopy
    Columbus, Ohio, 19 June 2013

    The 4050 A group of the A-X transition system of C3
    International Symposium on Molecular Spectroscopy
    Columbus, Ohio, 19 June 2013

    Search for a variation of fundamental constants
    International Symposium on Molecular Spectroscopy (invited)
    Columbus, Ohio, 19 June 2013

    Search for a variation of fundamental constants on a cosmological time scale
    Colloquium University of Heidelberg
    Heidelberg, Germany, 29 May 2013

    H2 as a possible carrier of the DIBs ?
    The Diffuse Interstellar bands, IAU Symposium 297
    Noordwijkerhout, Netherlands, 23 May 2013

    Search for a variation of fundamental constants via optical and redio astronomy
    Seminar, Leiden University, Astronomy Department
    Leiden, Netherlands, 13 Feb. 2013

    Laboratory spectroscopy and astronomical observations in search for a drifting proton-electron mass ratio
    Seminar, Radboud University Nijmegen
    Nijmegen, Netherlands, 23 Nov. 2012

    Search for a variation of fundamental constants
    Innsbruck Physics Lecture 2012 (invited)
    Innsbruck, Austria, 13 Nov. 2012

    Laboratory spectroscopy and astronomical observations in search for a drifting proton-electron mass ratio
    Colloquium, Universitat Koln
    Koln, Germany, 22 Oct. 2012

    Search for drifting constants in a dynamical Universe
    Enrico Fermi Colloquium, LENS, Florence
    Florence, Italy, 19 Oct. 2012

    Search for drifting constants via extra-galactic alcohol
    New Frontiers in Cosmology and Astronomy, Templeton Foundation
    Philidelphia, USA, 12 Oct. 2012

    Precision spectroscopy H2; Test of QED and varying constants
    6thInternational workshop on Fundamental Physics using atoms (invited)
    Sendai, Japan, 29 Sept. 2012

    Precision spectroscopy of He and H2
    Seminar National institute for Communications Technology
    Tokyo, Japan, 27 Sept. 2012

    Search for variation of fundamental constants on a cosmological time scale
    Colloquium AMOLF
    Amsterdam, Netherlands, 24 Sept. 2012

    The smallest neutral molecule, H2, as a benchmark system in spectroscopy
    Physique Atomique et Moleculaire et Optique (invited)
    Metz, France, 7 July 2012

    Search for variation of fundamental constants on a cosmological time scale
    Marcel Grossmann meeting on General relativity (MG3)
    Stockholm, Sweden, 3 July 2012

    Precision measurements of H2 and search of a varying proton-electron mass ratio
    International Conference on Precision Physics of Simple Atomic Systems (invited)
    Eltville, Germany, 11 June 2012

    Heavy Rydberg states
    ITAMP workshop on Ion-Pair states, Harvard University (invited)
    Cambridge, USA, 11 May 2012

    Varying Fundamental constants
    Diavolezza Snow and Ski meeting
    Diavolezza, Switzerland, 16 Feb. 2012

    Verandering van de Fundamentele Natuurconstanten ?
    Viva Fysica, Universiteit van Amsterdam
    Amsterdam, Netherlands, 27 Jan. 2012

    The Quest for drifting constants
    FOM @ Veldhoven (invited)
    Veldhoven, Netherlands, 19 Jan. 2012

    Gas-phase molecules at high redshift
    NWO Astrochemistry meeting
    Nijmegen, Netherlands, 27 Sept. 2011

    On the Physics of Fundamental Symmetries and Fundamental Constants of Nature
    Chair and organizer: Symposium and Kick-off meeting Broken Mirrors and Drifting Constants
    Amsterdam, Netherlands, 6 June 2011

    New quasar observations and laboratory measurements withmasers and lasers
    COST-IOTA-ESF meeting "Ion-trappers" network
    Heidelberg, Germany, 23 Mar. 2011

    Spectroscopic techniques for the extreme ultraviolet
    Colloquium CFEL
    Hamburg, Germany, 8 Mar. 2011

    Spectroscopic techniques for the extreme ultraviolet
    Colloquium CFEL
    Hamburg, Germany, 8 Mar. 2011

    The Spectrum of molecular hydrogen and a possible variation of the proton-electron mass ratio
    SOLEIL workshop
    Paris, France, 23 Nov. 2010

    Precision spectroscopy and our view on the Universe
    Special meeting for the retirement of Prof. Hans ter Meulen
    Nijmegen, Netherlands, 29 Oct. 2010

    On the variation of the proton-electron mass ratio
    Joint European and National Astronomy meeting 2010
    Lisbon, Portugal, 7 Sept. 2010

    Further constraints on the proton-electron mass ratio
    Variation of Constants and Violation of Symmetries workshop
    Cairns, Australia, 24-25 July 2010

    Coherent Extreme Ultraviolet Radiation and some applications
    Colloquium RWTH Aachen
    Aachen, Germany, 29 April 2010

    Molecular hydrogen in the lab and in the early Universe; search for varying mu
    Deutsche Physikalische Gesellschaft (invited)
    Hannover, Germany, 8 Mar. 2010

    The spectrum of H2 and HD and the quest for a varying proton-electron mass ratio
    ISA user meeting (invited)
    Aarhus, Denmark, 29 Jan. 2010

    Laboratory metrology and astronomical observations for probing variation of fundamental constants
    Quest@PTB
    Braunschweig, Germany, 16 Sept. 2009

    In search for mu-variation; Laboratory spectroscopy and astronomical observations of molecular hydrogen
    Perimeter Institute (invited)
    Waterloo, Canada, 15 July 2008

    H2 as a probe for varying mu
    Lorentz Centre Workshop
    Leiden, Netherlands, 20 May 2009

    Hybrid mode-locking of quentum dot laser diodes at 1.5 micron
    Meeting Memphis consortium
    Utrecht, Netherlands, 20 March 2009

    In search of a variation of fundamental constants
    Zernike Colloquium, University Groningen
    Groningen, Netherlands, 25 Sept. 2008

    Techniques of XUV precision spectroscopy
    EFTF '08 (invited)
    Toulouse, France, 25 April 2008

    On a possible variation of the proton-electron mass ratio
    ITAMP workshop Harvard University
    Cambridge, USA, 31 March 2008

    On a possible variation of the proton-electron mass ratio
    Colloquium TU Eindhoven
    Eindhoven, Netherlands, 20 March 2008

    Natuurconstanten altijd constant ?
    PAC Symposium Vrije Universiteit
    Amsterdam, Netherlands, 6 March 2008

    On a possible variation of the proton-electron mass ratio
    FOM @ Veldhoven
    Veldhoven, Netherlands, 22 Jan. 2008

    On a possible variation of the proton-electron mass ratio
    Colloquium Universitat Bonn
    Bonn, Germany, 11 Jan. 2008