Publications
List of Publications
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Violation of the Fluctuation-Dissipation Theorem and
Heating Effects in the Time-Dependent Kondo Model
D. Lobaskin and S. Kehrein
Preprint cond-mat/0504373
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Scaling and Decoherence in the Nonequilibrium
Kondo Model
S. Kehrein
Preprint cond-mat/0410341
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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
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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)
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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
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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)
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Exploiting environmental resonances to enhance qubit quality factors
S. Kleff, S. Kehrein, and J. von Delft
Phys. Rev. B 70, 014516 (2004)
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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)
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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)
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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)
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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)
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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)
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Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains
G. Refael, S. Kehrein, and D. Fisher
Phys. Rev. B 66, 060402(R) (2002)
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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)
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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)
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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)
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Flow equation analysis of the anisotropic Kondo model
W. Hofstetter and S. Kehrein
Phys. Rev. B 63, 140402(R) (2001)
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Flow equation approach to the sine-Gordon model
S. Kehrein
Nucl. Phys. B[FS] 592, 512-562 (2001)
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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)
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Flow Equation Solution for the Weak- to Strong-Coupling
Crossover in the Sine-Gordon Model
S. Kehrein
Phys. Rev. Lett. 83, 4914-4917 (1999)
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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)
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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)
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Symmetric Anderson impurity model with a narrow band
W. Hofstetter and S. Kehrein
Phys. Rev. B 59, R12732-12735 (1999)
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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)
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Density of states near the Mott-Hubbard transition
in the limit of large dimensions
S. Kehrein
Phys. Rev. Lett. 81, 3912-3915 (1998)
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Diagonalization of system plus environment Hamiltonians
S. Kehrein and A. Mielke
J. Stat. Phys. 90, 889-898 (1998)
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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)
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Low temperature equilibrium correlation functions
in dissipative quantum systems
S. Kehrein and A. Mielke
Ann. Physik (Leipzig) 6, 90-135 (1997)
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On the spin-boson model with a sub-ohmic bath
S. Kehrein and A. Mielke
Phys. Lett. A 219, 313-318 (1996)
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Theory of the Anderson Impurity Model: The Schrieffer-Wolff
Transformation Reexamined
S. Kehrein and A. Mielke
Ann. Phys. (NY) 252, 1-32 (1996)
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Flow equations for the spin-boson problem
S. Kehrein, A. Mielke and P. Neu
Z. Phys. B 99, 269-280 (1996)
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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)
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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)
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Flow equations for the Anderson Hamiltonian
S. Kehrein and A. Mielke
J. Phys. A 27, 4259-4279 (1994)
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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)
Email: Stefan.Kehrein@Physik.Uni-Augsburg.DE