Two interesting papers


Happy new year to all!

I start 2009 with a couple of beautiful papers that appeared in the latest issue of Reviews of Modern Physics. This is the review journal having the highest impact factor and for very good reasons. The articles are the following:

M. G. Alford, A. Schmitt, K. Rajagopal, T. Schaefer, “Color superconductivity in dense quark matter”, here and the preprint here.

F. Evers, A. D. Mirlin, “Anderson transitions”, here and the preprint here.

The first one is about a quite interesting question in nuclear physics and is worthwhile reading. Thomas Schaefer is currently full professor at North Carolina State University and a member of the Editorial Board of Physical Review Letters.  He has given wide ranging contributions to the fields of nuclear physics and QCD.

The second paper is about a matter that opened up an important mathematical problem and translate into famous questions that are Anderson localization and metal-insulator transition. For the case of off-diagonal disorder I have written a paper about (see here) that will appear shortly in International Journal of Modern Physics B.

The new year opens with a lot of hopes about great news in physics, mostly about dark matter and going beyond the standard model of particle physics. It is time to stay tuned!

Localization with off-diagonal disorder


Today, the Editor of International Journal of Modern Physics B communicated to me that my paper (see here) has been accepted for publication. This paper presents an application of my strong perturbation method to a typical condensed matter system having off-diagonal disorder. The interesting thing about is that this system is not localized for the state with zero energy. The perturbation series I get has the development parameter given by the ratio between coherence time and Fermi time, exactly the opposite of a weak localization scheme.

This paper has an interesting story. Writing down it I did not emphasize the essential fact that I was discussing a system with off-diagonal disorder. Finally, the referee hit the point and the paper has been accepted with a proper revision. This is again a lesson, if needed, that when the peer-review method works fine it is an advantage for all the community and there is a lot to gain both for authors and journals.

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