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Apl. Prof. Dr. rer. nat. Jörg Main: Publikationen

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2014
  • A. Junginger, T. Schaller, G. Hämmerling, J. Main, G. Wunner
    Normal form expansions and thermal decay rates of Bose-Einstein condensates with short- and long-range interaction
    Phys. Rev. A, submitted (2014)
    Preprint: PDF
  • J. Brinker, J. Fuchs, J. Main, G. Wunner, H. Cartarius
    Verification of exceptional points in the collapse dynamics of Bose-Einstein condensates
    Phys. Rev. A, submitted (2014)
    Preprint: PDF
  • F. Schweiner, J. Main, H. Cartarius, G. Wunner
    Classical dynamics and localization of resonances in the high energy region of the crossed fields hydrogen atom
    Phys. Rev. E, submitted (2014)
    Preprint: PDF
  • F. Single, H. Cartarius, G. Wunner, J. Main
    Coupling approach for the realization of a PT-symmetric potential for a Bose-Einstein condensate in a double well
    external link Phys. Rev. A 90, 042123 (2014)
    Reprint: PDF
  • A. Junginger, J. Main, G. Wunner
    Construction of Darboux coordinates in noncanonical Hamiltonian systems via normal form expansions
    Nonlinearity, submitted (2014)
    Preprint: PDF
  • M. Kreibich, J. Main, H. Cartarius, G. Wunner
    Realizing PT-symmetric non-Hermiticity with ultra-cold atoms and Hermitian multi-well potentials
    external link Phys. Rev. A 90, 033630 (2014)
    Reprint: PDF
  • R. Fortanier, D. Dast, D. Haag, H. Cartarius, J. Main, G. Wunner, R. Gutöhrlein
    Dipolar Bose-Einstein condensates in a PT-symmetric double-well potential
    external link Phys. Rev. A 89, 063608 (2014)
    Reprint: PDF - GZipped PostScript
  • J. Fuchs, J. Main, H. Cartarius, G. Wunner
    Harmonic inversion analysis of exceptional points in resonance spectra
    external link J. Phys. A 47, 125304 (2014)
    Preprint: PDF
  • A. Löhle, H. Cartarius, D. Haag, D. Dast, J. Main, G. Wunner
    Stability of Bose-Einstein condensates in a PT symmetric double-δ potential close to branch points
    external link Acta Polytechnica 54, 133 - 138 (2014)
    Reprint: PDF
  • D. Haag, D. Dast, A. Löhle, H. Cartarius, J. Main, G. Wunner
    Nonlinear quantum dynamics in a PT-symmetric double well
    external link Phys. Rev. A 89, 023601 (2014)
    Reprint: PDF - GZipped PostScript
  • D. Dast, D. Haag, H. Cartarius, G. Wunner, R. Eichler, J. Main
    Description of Bose-Einstein condensates in PT-symmetric double wells
    Proceedings of the International Symposium on Self-Organization in Complex Systems: The Past, Present, and Future of Synergetics, A. Pelster, G. Wunner (Eds.)
    Springer Lecture Notes in Physics, in press (2014)
    Preprint: PDF
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2013
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2012
  • M. Kreibich, H. Cartarius, J. Main, G. Wunner
    A nonlinear dynamics approach to Bogoliubov excitations of Bose-Einstein condensates
    Proceedings of the "8th International Summer School/Conference LET'S FACE CHAOS THROUGH NONLINEAR DYNAMICS", CAMTP, University of Maribor, Slovenia, 26 June - 10 July 2011
    external linkAIP Conf. Proc., Vol. 1468, pp. 216-222 (2012)
    Reprint: PDF - GZipped PostScript
  • M. Kreibich, J. Main, G. Wunner
    Relation between the eigenfrequencies of Bogoliubov excitations of Bose-Einstein condensates and the eigenvalues of the Jacobian in a time-dependent variational approach
    external link Phys. Rev. A 86, 013608 (2012)
    Reprint: PDF - GZipped PostScript
2011
  • G. Wunner, H. Cartarius, P. Köberle, J. Main, S. Rau
    Exceptional points for nonlinear Schrödinger equations describing Bose-Einstein condensates of ultracold atomic gases
    external link Acta Polytechnica 51, 95 - 103 (2011)
    Reprint: PDF
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2010
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2009
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2008
  • G. Wunner, H. Cartarius, T. Fabčič, P. Köberle, J. Main, T. Schwidder
    Nonlinear dynamics of Bose-Einstein condensates with long-range interactions
    Proceedings of the "7th International Summer School/Conference LET'S FACE CHAOS THROUGH NONLINEAR DYNAMICS", CAMTP, University of Maribor, Slovenia, 29 June - 13 July 2008
    external linkAIP Conf. Proc., Vol. 1076, pp. 282-291 (2008)
    Reprint: PDF - GZipped PostScript
  • S. Bücheler, D. Engel, J. Main, G. Wunner
    Diffusion Monte Carlo calculations for the ground states of atoms and ions in neutron star magnetic fields
    in: Proceedings of the 9th International Conference on "Path Integrals - New Trends and Perspectives", Dresden 2007, edited by W. Janke and A. Pelster, World Scientific, Singapore (2008)
    Preprint: PDF - GZipped PostScript
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2007
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2006
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2005
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2004
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2003
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2002
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2001
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2000
  • T. Bartsch, J. Main, G. Wunner
    Ghost orbit bifurcations in semiclassical spectra
    Prog. Theor. Phys. Suppl. (Kyoto) 139, 429 - 436 (2000)
    Preprint: GZipped PostScript
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1999
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1998
  • J. Main
    Semiclassical quantization and analysis of chaotic systems
    Habilitationsschrift, Ruhr-Universität Bochum, 1998
  • J. Main, G. Wunner
    Atoms in external fields: Ghost orbits, catastrophes, and uniform semiclassical approximations
    In: Proceedings of the 172. WE-Heraeus-Seminar "Atoms and molecules in strong external fields"
    P. Schmelcher and W. Schweizer (ed.), Plenum Press, 223 - 232 (1998)
  • J. Main, G. Wunner, V. A. Mandelshtam, H. S. Taylor
    Analysis of quantum spectra by harmonic inversion
    In: Proceedings of the 172. WE-Heraeus-Seminar "Atoms and molecules in strong external fields"
    P. Schmelcher and W. Schweizer (ed.), Plenum Press, 215 - 222 (1998)
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1997
  • J. Main, C. Jung, H. S. Taylor
    Spectral analysis of the HO2 molecule
    In: Highly Excited Molecules: Relaxation, Reaction, and Structure, A. S. Mullin and G. C. Schatz (ed.)
    ACS Symposium Series 678, 39 - 50 (1997)
  • C. Jung, J. Main, V. A. Mandelshtam, H. S. Taylor
    The role of unstable invariant sets in chemical reactions
    In: Computational Chemistry and Chemical Engineering: Proceedings of the Third UNAM-CRAY Supercomputing Conference
    G. Cisneros, J. A. Cogordau, M. Castro, and C. Wang (ed.)
    World Scientific, Singapore, 52 - 62 (1997)
  • J. Main
    Semiclassical approaches to atoms in external fields
    In: Classical, Semiclassical and Quantum Dynamics in Atoms, B. Eckhardt and H. Friedrich (ed.), Lecture Notes in Physics 485, Springer-Verlag, 248 - 273 (1997)
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1996
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1995
  • D. Boosé, J. Main, B. Mehlig, K. Müller
    Variance of transition amplitudes for hydrogen in a strong magnetic field
    Europhys. Lett. 32, 295 - 300 (1995)
  • N. Merani, J. Main, G. Wunner
    Balmer and Paschen bound-free opacities for hydrogen in strong white dwarf magnetic fields
    Astronomy and Astrophysics 298, 193 (1995)
  • N. Merani, J. Main, G. Wunner
    Atomic data for bound-bound and bound-free opacities of hydrogen in a strong magnetic field
    In: Astrophysical Applications of Powerful New Databases, S. J. Adelman and W. L. Wiese (ed.),
    ASP Conference Series, Vol. 78, 81 (1995)
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1994
  • J. Main, G. Wiebusch, K. H. Welge, J. Shaw, J. B. Delos
    Recurrence spectroscopy: Observation and interpretation of large-scale structure in the absorption spectra of atoms in magnetic fields
    external 
linkPhys. Rev. A 49, 847 - 868 (1994)
  • J. Main, G. Wunner
    Rydberg systems in external fields: An example of open systems with quantum chaos
    J. Phys. Soc. Jpn. 63A, 73 (1994)
  • J. Main, G. Wunner
    Rydberg systems in external fields as an example of open quantum systems with classical chaos
    In: Proceedings of the International Symposium on Quantum Chemistry and Technology in the Mesoscopic Level,
    H. Hasegawa (ed.), Fukui, Japan, 78 (1994)
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1992
  • J. Main, G. Wiebusch, K. H. Welge
    Spectroscopy of the classically chaotic hydrogen atom in magnetic fields
    In: Irregular atomic systems and quantum chaos,
    J. C. Gay (ed.), Gordon and Breach Science Publishers, 241 - 259 (1992)
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1991
  • J. Main
    Das hochangeregte Wasserstoffatom im Magnetfeld und in gekreuzten magnetischen und elektrischen Feldern
    Dissertation, Universität Bielefeld, 1991
  • J. Main, G. Wiebusch, K. H. Welge
    Spectroscopy of the classically chaotic hydrogen atom in magnetic fields
    Comments At. Mol. Phys. 25, 233 - 251 (1991)
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1989
  • A. Holle, J. Main, G. Wiebusch, H. Rottke, K. H. Welge
    Diamagnetism of the hydrogen atom in the quasi-Landau regime
    In: Lecture Notes in Physics 339,
    F. Ehlotzky (ed.), Springer-Verlag, 230 (1989)
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1988
  • A. Holle, J. Main, G. Wiebusch, H. Rottke, K. H. Welge
    Laserspectroscopy of the diamagnetic hydrogen atom in the chaotic regime
    In: Atomic Spectra and Collisions in External Fields,
    K. T. Taylor, M. H. Nayfeh, and C. W. Clark (ed.), Plenum Press, 1 - 8 (1988)
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1987
  • A. Holle, G. Wiebusch, J. Main, K. H. Welge, G. Wunner, T. Ertl, H. Ruder
    Hydrogenic Rydberg atoms in strong magnetic fields: Theoretical and experimental spectra in the transition region from regularity to irregularity
    Z. Phys. D 5, 279 (1987)
  • J. Main, A. Holle, G. Wiebusch, K. H. Welge
    Semiclassical quantization of three-dimensional quasi-Landau resonances under strong field mixing
    Z. Phys. D 6, 295 (1987)
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1986
  • D. Wintgen, A. Holle, G. Wiebusch, J. Main, H. Friedrich, K. H. Welge
    Precision measurements and exact quantum mechanical calculations for diamagnetic Rydberg states in hydrogen
    external 
linkJ. Phys. B 19, L557 - L561 (1986)
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