2012

• Rotational quantum impurities in a metal: Stability of the 2-channel Kondo fixed point in a magnetic field

      Katinka Ballmann and Johann Kroha, Ann. Physik (Berlin)  524, 245-251 (2012)

• The Pseudoparticle Approach to Strongly Correlated Systems

  R. Fresard, J. Kroha and P. Wölfle,
  in "Strongly Correlated Systems: Theoretical Methods", A. Avella and F. Mancini Eds., Springer Series in Solid-State Sciences, Volume 171, 65-101 (2012)

• Nonlinear σ  model for optical media with linear absorption or gain

  Zhong Yuan Lai and Oleg Zaitsev, Phys. Rev. A 85, 043838 (2012)