Publications

List of Publications


  1. Violation of the Fluctuation-Dissipation Theorem and Heating Effects in the Time-Dependent Kondo Model
    D. Lobaskin and S. Kehrein
    Preprint cond-mat/0504373

  2. Scaling and Decoherence in the Nonequilibrium Kondo Model
    S. Kehrein
    Preprint cond-mat/0410341

  3. Crossover from Non-Equilibrium to Equilibrium Behavior in the Time-Dependent Kondo Model
    D. Lobaskin and S. Kehrein
    cond-mat/0405193, accepted for publication in Phys. Rev. B

  4. Unusual Single-Ion Non-Fermi Liquid Behavior in Ce(1-x)La(x)Ni9Ge4
    U. Killer, E.-W. Scheidt, G. Eickerling, H. Michor, J. Sereni, Th. Pruschke, and S. Kehrein
    Phys. Rev. Lett. 93, 216404 (2004)

  5. Crossover from Single-Ion to Coherent Non-Fermi Liquid Behavior in Ce(1-x)La(x)Ni9Ge4
    E.-W. Scheidt, U. Killer, H. Michor, E. Bauer, C. Dusek, S. Kehrein, and W. Scherer
    accepted for publication in Physica B

  6. Quantum phase transition of Ising-coupled Kondo impurities
    M. Garst, S. Kehrein, Th. Pruschke, A. Rosch, and M. Vojta
    Phys. Rev. B 69, 214413 (2004)

  7. Exploiting environmental resonances to enhance qubit quality factors
    S. Kleff, S. Kehrein, and J. von Delft
    Phys. Rev. B 70, 014516 (2004)

  8. Entropy balance analysis of the AFM-region in the phase diagram of UCu(5-x)Pd(x)
    U. Killer, E. -W. Scheidt, S. Kehrein, and W. Scherer
    J. Mag. Mag. Mat. 272-276, e77-e79 (2004)

  9. Semi-analytical solution of the Kondo model in a magnetic field
    C. Slezak, S. Kehrein, Th. Pruschke, and M. Jarrell
    Phys. Rev. B 67, 184408 (2003)

  10. Spin-spin correlation functions for a spin-boson model with a structured bath
    S. Kleff, S. Kehrein, and J. von Delft
    J. Phys. Soc. Jpn. 72, Suppl. A 161 (2003)

  11. Flow equation renormalization of a spin-boson model with a structured bath
    S. Kleff, S. Kehrein, and J. von Delft
    Physica E 18, 343 (2003)

  12. Changes in non-Fermi liquid behavior with annealing due to lattice disorder in UCu4Pd
    C. H. Booth, U. Killer, E.-W. Scheidt, A. Weber, and S. Kehrein
    Phys. Rev. B 66, 140402(R) (2002)

  13. Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains
    G. Refael, S. Kehrein, and D. Fisher
    Phys. Rev. B 66, 060402(R) (2002)

  14. Quantum phase transitions: experimental facts - a challenge for theory
    E.-W. Scheidt, D. Maurer, A. Weber, T. Goetzfried, K. Heuser, S. Kehrein and R. Tidecks
    Physica B 321, 133 (2002)

  15. Non-Fermi-liquid behavior in CePt(1+x)Si(1-x) and CePtSi(1-y)Ge(y)
    T. Goetzfried, A. Weber, D. Maurer, E.-W. Scheidt, S. Kehrein, K. Heuser and G. R. Stewart
    J. Low Temp. Phys. 127, 51 (2002)

  16. Order and nFl Behavior in UCu4Pd
    A. Weber, S. Koerner, S. Kehrein, E.-W. Scheidt, and G. R. Stewart
    Phys. Rev. B 63, 205116 (2001)

  17. Flow equation analysis of the anisotropic Kondo model
    W. Hofstetter and S. Kehrein
    Phys. Rev. B 63, 140402(R) (2001)

  18. Flow equation approach to the sine-Gordon model
    S. Kehrein
    Nucl. Phys. B[FS] 592, 512-562 (2001)

  19. Nuclear Spin Relaxation and ``Kondo-disorder'' in UCu3.5Pd1.5
    N. Buettgen, W. Trinkl, J.-E. Weber, J. Hemberger, A. Loidl and S. Kehrein
    Phys. Rev. B 62, 11545-11548 (2000)

  20. Flow Equation Solution for the Weak- to Strong-Coupling Crossover in the Sine-Gordon Model
    S. Kehrein
    Phys. Rev. Lett. 83, 4914-4917 (1999)

  21. Absence of hysteresis at the Mott-Hubbard metal-insulator transition in infinite dimensions
    J. Schlipf, M. Jarrell, P. G. J. van Dongen, N. Bluemer, S. Kehrein, Th. Pruschke and D. Vollhardt
    Phys. Rev. Lett. 82, 4890-4893 (1999)

  22. The Mott-Hubbard Metal-Insulator Transition in the Limit of Large Dimensions - Insights and Outlook
    S. Kehrein
    in: B. Kramer (Editor), Advances in Solid State Physics 39, p. 263-270, Vieweg Verlag (1999)

  23. Symmetric Anderson impurity model with a narrow band
    W. Hofstetter and S. Kehrein
    Phys. Rev. B 59, R12732-12735 (1999)

  24. Reply to ``Comment on Density of states near the Mott-Hubbard transition in the limit of large dimensions''
    S. Kehrein
    Phys. Rev. Lett. 84, 3501 (2000)

  25. Density of states near the Mott-Hubbard transition in the limit of large dimensions
    S. Kehrein
    Phys. Rev. Lett. 81, 3912-3915 (1998)

  26. Diagonalization of system plus environment Hamiltonians
    S. Kehrein and A. Mielke
    J. Stat. Phys. 90, 889-898 (1998)

  27. High-gradient operators in the N-vector model
    S. E. Derkachov, S. Kehrein and A. N. Manashov
    Nucl. Phys. B[FS] 493, 660-682 (1997)

  28. Low temperature equilibrium correlation functions in dissipative quantum systems
    S. Kehrein and A. Mielke
    Ann. Physik (Leipzig) 6, 90-135 (1997)

  29. On the spin-boson model with a sub-ohmic bath
    S. Kehrein and A. Mielke
    Phys. Lett. A 219, 313-318 (1996)

  30. Theory of the Anderson Impurity Model: The Schrieffer-Wolff Transformation Reexamined
    S. Kehrein and A. Mielke
    Ann. Phys. (NY) 252, 1-32 (1996)

  31. Flow equations for the spin-boson problem
    S. Kehrein, A. Mielke and P. Neu
    Z. Phys. B 99, 269-280 (1996)

  32. The spectrum of critical exponents in phi^4-theory in d=4-epsilon dimensions - Resolution of degeneracies and hierarchical structures
    S. Kehrein
    Nucl. Phys. B[FS] 453, 777-806 (1995)

  33. The structure of the spectrum of anomalous dimensions in the N$-vector model in 4-epsilon dimensions
    S. Kehrein and F. Wegner
    Nucl. Phys. B[FS] 424, 521-546 (1994)

  34. Flow equations for the Anderson Hamiltonian
    S. Kehrein and A. Mielke
    J. Phys. A 27, 4259-4279 (1994)

  35. Conformal symmetry and the spectrum of anomalous dimensions in the N-vector model in 4-epsilon dimensions
    S. Kehrein, F. Wegner and Y. Pismak
    Nucl. Phys. B[FS] 402, 669-692 (1993)



Mailbox Email: Stefan.Kehrein@Physik.Uni-Augsburg.DE
INFO HELP Universität Augsburg Institut für Physik Lehrstuhl für Theoretische Physik III