I am an academic visitor in the Theoretical Physics group at Imperial College London and a visiting professor at Washington University in St Louis.

I work on complex extensions of quantum and classical mechanical systems.  My main collaborators are Professor Carl Bender and Dr Dorje Brody.  I'm interested in many aspects of quantum theory, especially non-standard approaches such as geometric or PT-Symmetric quantum theory.  I have also done research in quantum statistical mechanics.

I am the co-founder and CEO of Symplectic Limited, a research management software company.  In this context I'm interested in bibliometrics and work closely with Jonathan Adams, Karen Gurney (Thomson Reuters) and Tim Evans (Imperial) on complex network based models for citations and collaboration analysis.  (Tim has an excellent set of webpages describing his work on complex networks here, where you can find out more about one of the projects that we've worked on together).  I recently wrote a "Global Research Report" with Jonathan Adams and Christopher King on the status of research in Africa (available from the Thomson Reuters website here.)

A full list of my physics publications can be viewed on arXiv.org using my author identifier: http://arxiv.org/a/hook_d_1

I was invited to this years' SciFoo conference (2010) - undoubtedly the best conference I've ever been to!  If any campers are visiting London please do say hi!

I've started a website to try to serve the PT Symmetry / Non-Hermitean Hamiltonian community.  I'm still building, but the intention is to make this a useful resource for those who are new to the field or those who wish to track publications that are being produced in the field.  The site is called the PT Symmeter.