Search form

Dr. Stefan Kettemann
Professor for Complex Systems
School of Computer Science & Engineering
Computer Science & Electrical Engineering

Constructor University Bremen, gGmbH, Campus Ring 1, 28759 Bremen, Germany

+49 421 200-3229
skettemann [at]
Research III, Room 96
Office Hours: 

whenever I am there

Research Interests: 

(Quantum) Phase Transitions, Quantum transport, Spintronics, Thermoelectrics, Photovoltaics, Energy Grids

University Education: 

Master of Arts and Science, Washington University, St. Louis, 1990 Ph. D. Max Planck Insititute f. Solid State Research, Stuttgart 1994 Habil., Lecturer of Theoretical Physics, Hamburg University, 2001

Fellowships and Awards: 

World Class University Associate Professor since 2009

Research and Teaching Positions: 

Post Doc at Weizmann Institute, Rehovot, Israel 1994-1996 Post Doc at MPIPKS Stuttgart/Dresden 1996-1999 Assistant at Hamburg University 1999-2001 Lecturer of theoretical Physics at Hamburg University 2001-2008 CNRS POSTE ROUGE at ENSCP Paris 2004 Visiting Professor at Sophia University, Tokyo and Boston University Lecturer of Physics at Jacobs University, since 2008 Associate Professor at POSTECH, since 2009

Funded Projects: 

Currently Funded:
BMBF Project CoNDyNet (Collective Nonlinear Dynamics of Complex Electricity Grids) in collaboration with Potsdam-Institut fur Klimafolgenforschung (PIK), Max-Planck-Institut fur Dynamik und Selbstorganisation (MPIDS),
Frankfurt Institute for Advanced Studies (FIAS), 
Forschungszentrum Julich (FZJ)
DFG Collaboration Project Long Range  Quantum Glasses
DFG-Collaboration Project  Tuning Superconductivity in Doped Semiconductors
DFG-Project Spin-Dynamics and Electron Transport in Structures of Reduced Dimensionality KE 807/6-1  3/4 BAR IIA 1 year
  WCU ( World Class University ) program through  the Korea Science and Engineering Foundation funded by the Ministry of Education, Science and Technology (Pro ject No. R31-2008-000-10059-0) for 5 years, on emergent materials science



Selected Publications:  (For all Publications see
1. Critical Metal Phase at the Anderson Metal-Insulator Transition with Kondo Impurities,
    S. Kettemann, E. R. Mucciolo, and I. Varga,, Phys. Rev. Lett. 103, 126401, (2009).
1.  Nanomechanical Detection of Itinerant Electron Spin Flip,  G. Zolfagharkhani, A. Gaidarzhy,
     P.  Degiovanni, S. Kettemann, P. Fulde and P.  Mohanty, Nature Nanotechnology, acc. 26.9.(2008).
2.  Nonperturbative Scaling Theory of Free Magnetic Moment Phases in Disordered Metals,
    A. Zhuravlev, I. Zharekeshev, E. Gorelov, A. Lichtenstein, E. Mucciolo, S. Kettemann,
    Phys. Rev. Lett. 99,  247202  (2007).
3. Dimensional Control of Antilocalisation and Spin Relaxation in Quantum Wires, S. Kettemann,  
    Phys.  Rev. Lett. 98, 176808 (2007).
4. Free Magnetic Moments in Disordered Metals , S. Kettemann, Eduardo R.  Mucciolo,  JETP Letters
     83, 240 (2006).
5.  The Mesoscopic Chiral Metal-Insulator, Transition, S. Kettemann, B. Kramer, T. Ohtsuki, JETP
     Lett. 80, 316 (2004).
6.  Random Network Models and  Quantum Phase Transitions in Two Dimensions,
     B. Kramer, T. Ohtsuki, and S. Kettemann, Physics Reports  417, 211 (2005).
7.  Localization Length in Anderson Insulator with Kondo Impurities,  S. Kettemann, Mikhail E. Raikh,   
     Phys. Rev. Lett.   90, 146601 (2003).
8.   Information about the Quantum Hall Transition extracted from the Autocorrelation Function of
      Spectral Determinants, S. Kettemann, Alexei      Tsvelik, Phys. Rev. Lett.  82, 3689 (1999).
9.   Correlated Persistent Tunneling Currents in Glasses, S. Kettemann, Peter Fulde, Peter Strehlow,
      Phys. Rev. Lett.  83,  4325 (1999).
10.  Diamagnetic Response due to Localization in Chains of Mesoscopic Rings, S.  Kettemann,    
       Konstantin B. Efetov, Phys. Rev. Lett.  74, 2547 (1995).