"Karma Police, Arrest this man !
 He talks in math
 He buzzes like a fridge
 He's like a detuned radio........." - (Radiohead)

Who ? Where? What ? Where to ? ??? Out of here !


Who ?
higher and higher

Some  (not necessarily relevant) numbers and facts about me:
"It's a dogs life !"
Official name: Johannes Arnoldus Hermanus Keurentjes (But please call me Arjan)
Born in: Bladel en Netersel (I was a big baby)
on: the 6th of July 1969
Grew up in: Eindhoven (1974-1987)
Lived in: Leiden (1987-1999)
Lives in: Voorschoten (1999- )

Relationship(s): married (happily)
Partner: Marita, born Maria Johanna Catherina Schultz.
Together since 1990, married since 7 May 1997.
Children: Yes! :
two lovely daughters


Where? high and dry

Work address
Arjan Keurentjes

Département de Physique - Ecole Normale Supérieure 
24, rue Lhomond
75230 Paris Cedex 05 - France
Home address
Arjan Keurentjes
48 rue Damrémont
75018 Paris
Family address
Arjan Keurentjes
Wilhelmina Druckeref 40
2253 RV Voorschoten
The Netherlands


What? the way to the top

I am a researcher in theoretical physics, on the subject of high energy physics. My Ph.D. research, done under the supervision of prof. Pierre van Baal, took place in the instituut-Lorentz for Theoretical Physics , part of LION, at the Universiteit Leiden. At the moment I am a post-doc at a joint position at the Ecole Normale Superieure and Universite Paris VI, Jussieu, funded by the RTN-Network Superstrings. See also the String theory in Paris page.

I try to keep an eye on the full width of the field, but my research interests are mostly concentrated on gauge theories and string theory. This is an immense research area, so some more keywords (not exhaustive) are: Bundles, gerbes, D-branes, orientifolds, singularities, M-theory, Lie groups, topology. My publications on some of these topics can be found on the web-archives of physics publications (mainly High Energy Physics - theory) and in several journals.

As Ph.D. student, I have contributed to the physics education at the University of Leiden. I have assisted in the courses:

I have also participated in the organisation of an small course in "Speciale Relativiteitstheorie voor scholieren" (in Dutch)

Where to ? "up where we belong"
Well, in principle wherever you want to go. Links I visit frequently are:
Science links
- Scientists and events in the area: -Preprint servers: - Database on high energy physics publications: - Reviews on physics: - Journals: - Popular accounts of
Newspapers (French) Newspapers (Dutch) Miscellaneous (French)  Miscellaneous (Dutch)  
 More coming up.....................(?)

??? the only way is up......
email address: Arjan.Keurentjes@lpt.ens.fr

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last update: October 17 2001