My main subjects of research are quantum field theory, general relativity and string theory. In studying string theory, I have worked on supersymmetric quantum field theories and conformal field theories, as well as general relativity and supergravity. I have made incursions into integrable systems, non-commutative field theories, and holography in quantum gravity. I keep an eye on the phenomenological applications of theoretical physics, including string theory.

As a researcher, I am a member of a global research community that includes people of countless nationalities. I am a European researcher, part of a large Europen network of similarly oriented researchers who gather frequently, organize conferences, seminars, workshops, networks, and drink coffee. More in particular, I belong to the group of researchers that form the lab of theoretical physics of the ENS (le laboratoire de physique théorique, LPTENS).

An almost complete list of my publications is available at SPIRES or the Arxiv.
You may deduce some of my past and present interests from that list.

For some vulgarization of science, and string theory and high energy physics in particular, I refer to my site Beyond String Theory (see also the links and references section), as well as the popularizing site of the ENS (in French).

The following pages contain further links and references for some topics related to my domains of research:

String Theory

Quantum Field Theory I

General Relativity

Supersymmetric Quantum Field Theory

Conformal Field Theory

Miscellanea

A research highlight (as prompted by recent demands on scientists to engage in advertising)

A list of my publications from which you may deduce some of my interests can be found in the SPIRES database.