Dynamics of Correlated Electrons at Quantum Phase Transitions

• Applicants: Privatdozent Dr. Ralf Bulla; Professor Dr. Stefan Kehrein
• Subject Area: Theoretical Condensed Matter Physics
• Term: from 2007 to 2011
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 48554140

Final Report Abstract

No abstract available

Publications

• Numerical renormalization group method for quantum impurity systems, Rev. Mod. Phys. 80, 375 (2008)
  R. Bulla, T. Costi, and Th. Pruschke
  
• Real-time evolution in quantum many-body systems with unitary perturbation theory, Phys. Rev. B 78, 092303 (2008)
  A. Hackl and S. Kehrein
  
• Non-equilibrium magnetization dynamics of ferromagnetically coupled Kondo spins, Phys. Rev. B. 80, 195117 (2009)
  A. Hackl, M. Vojta, and S. Kehrein
  
• Non-equilibrium spin dynamics in the ferromagnetic Kondo model, Phys. Rev. Lett. 102, 196601 (2009)
  A. Hackl, D. Roosen, S. Kehrein, and W. Hofstetter
  
• Quantum phase transition in the sub-ohmic spin-boson model: Quantum Monte Carlo study with a continuous imaginary time cluster algorithm, Phys. Rev. Lett. 102, 030601 (2009)
  A. Winter, H. Rieger, M. Vojta, and R. Bulla
  
• Unitary perturbation theory approach to real-time evolution problems, J. Phys. Condens. Matter 21, 015601 (2009)
  A. Hackl and S. Kehrein