Homepage of Thomas Bartsch

• Classical dynamics of nonlinear systems
• Semiclassical quantization of multidimensional chaotic systems
• Bifurcations and uniform approximations
• Atoms in external fields
• Quantum chaos
• Numerical methods for signal processing (harmonic inversion)

Publications in: 2006 - 2005 - 2003 - 2002 - 2001 - 2000 - 1999 - 1998

2006

• T. Bartsch, T. Uzer
  Rydberg Atoms in Strong Static Fields
  Chapter 15 in
  Drake, Gorden W. F. (Ed):
  Springer Handbook of Atomic, Molecular, and Optical Physics
  Springer, 2006

2005

• T. Bartsch, T. Uzer, R. Hernandez
  Stochastic transition states: Reaction geometry amidst noise
  J. Chem. Phys. 123, 204102 (2005)
  Reprint: PDF - GZipped PostScript

• T. Bartsch, R. Hernandez, T. Uzer
  Transition State in a Noisy Environment
  Phys. Rev. Lett 95, 058301 (2005)
  Reprint: PDF - GZipped PostScript

• T. Bartsch, T. Uzer
  Semiclassical ionization dynamics of the hydrogen molecular ion in an electric field of arbitrary orientation
  J. Phys. B 38, S241 - S260 (2005)
  Reprint: PDF - GZipped PostScript

• T. Fabčič, J. Main, T. Bartsch, G. Wunner
  Photoabsorption spectra of the diamagnetic hydrogen atom in the transition regime to chaos: Closed orbit theory with bifurcating orbits
  J. Phys. B 38, S219 - S239 (2005)
  Reprint: PDF - GZipped PostScript

2003

• T. Bartsch, J. Main, G. Wunner
  Uniform semiclassical approximations on a topologically non-trivial configuration space: The hydrogen atom in an electric field
  Eur. Phys. J. D 25, 129 - 138 (2003)
  Reprint: PDF - GZipped PostScript

• T. Bartsch, J. Main, G. Wunner
  Semiclassical quantization of the hydrogen atom in crossed electric and magnetic fields
  Phys. Rev. A 67, 063411 (2003)
  Reprint: PDF - GZipped PostScript

• T. Bartsch, J. Main, G. Wunner
  Closed orbits and their bifurcations in the crossed-fields hydrogen atom
  Phys. Rev. A 67, 063410 (2003)
  Reprint: PDF - GZipped PostScript

• T. Bartsch
  The Kustaanheimo-Stiefel transformation in geometric algebra
  J. Phys. A 36, 6963 - 6978 (2003)
  Reprint: PDF - GZipped PostScript

• T. Bartsch, J. Main, G. Wunner
  The hydrogen atom in an electric field: Closed-orbit theory with bifurcating orbits
  J. Phys. B 36, 1231 - 1254 (2003)
  Reprint: PDF - GZipped PostScript

2002

• T. Bartsch
  The hydrogen atom in an electric field and in crossed electric and magnetic fields: Closed-orbit theory and semiclassical quantization
  Dissertation, University of Stuttgart
  Cuvillier-Verlag Göttingen
  PDF - Gzipped PostScript

• T. Bartsch, J. Main, G. Wunner
  Semiclassical quantization with bifurcating orbits
  Phys. Rev. A 66, 033404 (2002)
  Reprint: PDF - GZipped PostScript

2001

• T. Bartsch, J. Main, G. Wunner
  Semiclassical quantization by harmonic inversion: Comparison of algorithms
  Phys. Rev. E 64, 056705 (2001)
  Reprint: PDF - GZipped PostScript

2000

• T. Bartsch, J. Main, G. Wunner
  Ghost orbit bifurcations in semiclassical spectra
  Prog. Theor. Phys. Suppl. (Kyoto) 139, 429 - 436 (2000)
  Reprint: PDF - GZipped PostScript

1999

• T. Bartsch, J. Main, G. Wunner
  Uniform approximations for non-generic bifurcation scenarios including bifurcations of ghost orbits
  Annals of Physics 277, 19 - 73 (1999)
  Reprint: PDF - GZipped PostScript

• T. Bartsch, J. Main, G. Wunner
  Significance of ghost orbit bifurcations in semiclassical spectra
  J. Phys. A 32, 3013 - 3027 (1999)
  Reprint: PDF - GZipped PostScript

1998

• T. Bartsch
  Gleichmäßige Näherung für semiklassische Spektren mit Hilfe katastrophentheoretischer Beugungsintegrale
  Diploma thesis, Ruhr University Bochum
  PDF - Gzipped PostScript

Last update: January 13, 2006.