(2006-2007)
| Stefano Bolognesi Niels Bohr Institute |
October - December 2006 |
| Alexander Chudnovskiy University of Hamburg |
March - April 2007 |
| Alexander Gorsky ITEP |
October - November 2006 |
| Igor Lerner Birmingham University |
April 2007 |
| Jiun-Huei Proty Wu National Taiwan University |
October - November 2006 |
| Alexei Yung Petersburg Theoretical Physics Institute |
October 2006 - April 2007 |