I am located at
Center for Joint Quantum Studies
School of Science
Tianjin University


You reach me at


+86 130 1136 5825

Tianjin webpage

Mailing address:

Professor Klavs Hansen
School of Science
Beiyangyuan Campus
Tianjin University
Jinnan District
Tianjin 300354
P.R. China


I am also
Senior Visiting Professor at KU Leuven


Coming events

European Group on Atomic Systems’ 50th conference,
Kraków, Poland
July 9-13, 2018

ESD 2019
Electrostatic Storage Devices,
Tianjin, summer of 2019

Erice workshop 2020
at the Ettore Majorana Center:
Delocalized electrons in Atomic and Molecular Nanoclusters

(tentative title)

Table of contents, 1st edition

Order here (external link)

The book is available as a softcover print-on-demand for 25 Euros/US$ if your library subscribes to a Springer e-book package.

Errata (2017-09-10)
(this list will no longer be updated; please refer to the second edition)

Table of contents, 2nd edition
(in press, final page numbers will differ)

                                    Welcome to the home page of
                                     Klavs Hansen

                     I work with statistical processes in clusters and large molecules.
                             Tools: Ion storage rings, mass spectrometers, lasers
                          Subjects: Energies, thermodynamics, radiative cooling


Recent publications


Stabilities of protonated water-ammonia clusters
A.E.K. Sundén, K. Stĝchkel, P. Hvelplund, S. Brĝndsted Nielsen,  B. Dynefors, and K. Hansen
J. Chem. Phys. 148 (2018) 184306

Action spectroscopy of highly excited molecular ions in molecular beams
K. Hansen
Int. J. Mass. Spectrom. 430 (2018) 14-21 (free access April and part of May, 2018)

Tunneling and reflection in unimolecular reaction kinetic energy release distributions
K. Hansen
Chem. Phys. Lett. 693 (2018) 66-71
(Editor’s Choice)

Thermal radiation of gold clusters on microsecond times scales

K. Hansen, P. Ferrari, E. Janssens, and P. Lievens:
Phys. Rev. A 96 (2017) 022511

Single photon transient hot electron ionization of C60
K. Hansen
Phys. Chem. Chem. Phys. 19 (2017), 19699

Energy flow in peptides after UV photoexcitation of backbone linkages
Klavs Hansen, Camilla Skinnerup Byskov, and Steen Brĝndsted Nielsen
Phys. Chem. Chem. Phys. 19 (2017) 19640

Associations and dissociations with time-dependent reaction coefficients in finite polymer mixtures: The model and analytical-numerical method for solution by successive approximations
E. Mamontov, K. Hansen
Applied Mathematical Modelling 51 (2017) 109-128

Gold cluster electronic radiative cooling and abundances
Klavs Hansen, Piero Ferrari Ramirez, Ewald Janssens, Peter Lievens
J. Phys. Chem. C 121 (2017) 10663-10669

Single Photon Thermal Ionization of C60
Klavs Hansen, Robert Richter, Michael Alagia, Stefano Stranges, Luca Schio, Peter Salén, Vasyl Yatsyna, Raimund Feifel, and Vitali Zhaunerchyk
Phys. Rev. Lett. 118 (2017) 103001
Selected as Editor's Suggestion

Spontaneous decay of small copper cluster anions Cun-, n = 3 - 6 on long time scales
K. Hansen, M.H. Stockett, M. Kaminska, R.F. Nascimento, E.K. Anderson, M. Gatchell, K.C. Chartkunchand, G. Eklund,
H. Zettergren, H.T. Schmidt, and H. C Cederquist
Phys. Rev. A 95
(2017) 022511

All publications