Publications (41)
Bose-Einstein condensates with attractive 1/r interaction: The case of self-trapping
I. Papadopoulos, P. Wagner, G. Wunner +1
Periodic orbit quantization of chaotic systems with strong pruning
K. Weibert, J. Main, G. Wunner
Semiclassical quantization of the hydrogen atom in crossed electric and magnetic fields
T. Bartsch, J. Main, G. Wunner
Uniform semiclassical approximations on a topologically non-trivial configuration space: The hydrogen atom in an electric field
T. Bartsch, J. Main, G. Wunner
Use of Harmonic Inversion Techniques in the Periodic Orbit Quantization of Integrable Systems
K. Weibert, J. Main, G. Wunner
Time propagation of constrained coupled Gaussian wave packets
T. Fabcic, J. Main, G. Wunner
Periodic orbit quantization of chaotic maps by harmonic inversion
K. Weibert, J. Main, G. Wunner
Classical, semiclassical, and quantum investigations of the 4-sphere scattering system
J. Main, E. Atilgan, H. S. Taylor +1
Semiclassical Non-Trace Type Formulas for Matrix Element Fluctuations and Weighted Densities of States
J. Main, G. Wunner
Uniform semiclassical approximations for umbilic bifurcation catastrophes
J. Main, G. Wunner
Extracting Multidimensional Phase Space Topology from Periodic Orbits
S. Gekle, J. Main, T. Bartsch +1
Periodic Orbit Quantization: How to Make Semiclassical Trace Formulae Convergent
J. Main, G. Wunner
Superiority of semiclassical over quantum mechanical calculations for a three-dimensional system
J. Main, G. Wunner, E. Atilgan +2
Harmonic inversion as a general method for periodic orbit quantization
J. Main, V. A. Mandelshtam, G. Wunner +1
The hydrogen atom in an electric field: Closed-orbit theory with bifurcating orbits
T. Bartsch, J. Main, G. Wunner
Diffusion Monte Carlo calculations for the ground states of atoms and ions in neutron star magnetic fields
S. Bucheler, D. Engel, J. Main +1
Semiclassical quantization with bifurcating orbits
T. Bartsch, J. Main, G. Wunner
Distributions of Transition Matrix Elements in Classically Mixed Quantum Systems
D. Boose, J. Main
Use of Harmonic Inversion Techniques in Semiclassical Quantization and Analysis of Quantum Spectra
J. Main
Semiclassical Spectra and Diagonal Matrix Elements by Harmonic Inversion of Cross-Correlated Periodic Orbit Sums
J. Main, K. Weibert, V. A. Mandelshtam +1
Deterministic diffusion in one-dimensional maps - Calculation of diffusion constants by harmonic inversion of periodic orbit sums
K. Weibert, J. Main, G. Wunner
Uniform approximations for non-generic bifurcation scenatios including bifurcations of ghost orbits
T. Bartsch, J. Main, G. Wunner
Higher-order hbar corrections in the semiclassical quantization of chaotic billiards
K. Weibert, J. Main, G. Wunner
Resonance widths in open microwave cavities studied by harmonic inversion
U. Kuhl, R. Hoehmann, J. Main +1
Spectral singularities in PT-symmetric Bose-Einstein condensates
W. D. Heiss, H. Cartarius, G. Wunner +1
Decimation and Harmonic Inversion of Periodic Orbit Signals
J. Main, P. A. Dando, Dz. Belkic +1
Periodic orbit quantization of the closed three-disk billiard as an example of a chaotic system with strong pruning
K. Weibert, J. Main, G. Wunner
Photoabsorption spectra of the diamagnetic hydrogen atom in the transition regime to chaos: Closed orbit theory with bifurcating orbits
T. Fabcic, J. Main, T. Bartsch +1
Fictitious time wave packet dynamics: II. Hydrogen atom in external fields
T. FabÄiÄ, J. Main, G. Wunner
Ghost orbit bifurcations in semiclassical spectra
T. Bartsch, J. Main, G. Wunner
Nonlinear Dynamics of Bose-Einstein Condensates with Long-Range Interactions
G. Wunner, H. Cartarius, T. FabÄiÄ +3
Fictitious time wave packet dynamics: I. Nondispersive wave packets in the quantum Coulomb problem
T. FabÄiÄ, J. Main, G. Wunner
A nonlinear dynamics approach to Bogoliubov excitations of Bose-Einstein condensates
M. Kreibich, H. Cartarius, J. Main +1
Comment on "Recurrences without closed orbits"
J. Main
Closed orbits and their bifurcations in the crossed-fields hydrogen atom
T. Bartsch, J. Main, G. Wunner
Semiclassical Quantization by Harmonic Inversion: Comparison of Algorithms
T. Bartsch, J. Main, G. Wunner
Semiclassical Quantization by Pade Approximant to Periodic Orbit Sums
J. Main, P. A. Dando, Dz. Belkic +1
Significance of Ghost Orbit Bifurcations in Semiclassical Spectra
T. Bartsch, J. Main, G. Wunner
hbar expansion for the periodic orbit quantization by harmonic inversion
J. Main, K. Weibert, G. Wunner
Periodic Orbit Quantization of Mixed Regular Chaotic Systems
J. Main, G. Wunner
Semiclassical Calculation of Transition Matrix Elements for Atoms in External Fields
J. Main, G. Wunner