@article{41780, author = {{Fuchs, Christian}}, journal = {{Nature, Society, and Thought}}, number = {{3}}, pages = {{281--313}}, title = {{{The Self-Organization of Matter}}}, volume = {{16}}, year = {{2003}}, } @article{41776, author = {{Fuchs, Christian}}, journal = {{European Journal of Social Theory}}, number = {{4}}, pages = {{387--408}}, title = {{{Some Implications of Pierre Bourdieu’s Works for a Theory of Social Self-Organization}}}, volume = {{6}}, year = {{2003}}, } @article{41771, author = {{Fuchs, Christian}}, journal = {{Systemic Practice and Action Research}}, number = {{4}}, pages = {{133--167}}, title = {{{Structuration Theory and Self-Organization}}}, volume = {{16}}, year = {{2003}}, } @article{41782, author = {{Fuchs, Christian}}, journal = {{Vorschein}}, pages = {{41--63}}, title = {{{Fortschritt und Utopie (Progress and utopia)}}}, volume = {{24}}, year = {{2003}}, } @article{42445, author = {{Fuchs, Christian}}, journal = {{Seeking Wisdom}}, number = {{1}}, pages = {{25--55}}, title = {{{Dialectical Materialism and the Self-Organization of Matter}}}, volume = {{1}}, year = {{2003}}, } @techreport{42739, author = {{Fuchs, Christian}}, publisher = {{Vienna University of Technology}}, title = {{{The Self-Organisation of Politics, Power and the Nation State. INTAS-Project “Human Strategies in Complexity“-Research Paper}}}, year = {{2003}}, } @inproceedings{42449, author = {{Hofkirchner, Wolfgang and Fuchs, Christian}}, booktitle = {{Proceedings of the 47th Annual Conference of the International Society for the Systems Sciences (ISSS): Agoras of the Global Village}}, editor = {{Wilby, Jennifer and Allen, Janet K.}}, isbn = {{0-9740735-1-2}}, location = {{Iraklion, Crete}}, title = {{{The Architecture of the Information Society}}}, year = {{2003}}, } @phdthesis{43030, author = {{Kraft, Kerstin}}, title = {{{Dissertation ‚Muster ohne Wert’. Zur Funktionalisierung und Marginalisierung des Musters: https://d-nb.info/965565424/34 }}}, year = {{2003}}, } @article{43290, abstract = {{A nonequilibrium occupation distribution relaxes towards the Fermi-Dirac distribution due to electron-electron scattering even in finite Fermi systems. The dynamic evolution of this thermalization process assumed to result from an optical excitation is investigated numerically by solving a Boltzmann equation for the carrier populations using a one-dimensional disordered system. We focus on the short-time-scale behavior. The logarithmically long time scale associated with the glassy behavior of interacting electrons in disordered systems is not treated in our investigation. For weak disorder and short range interaction we recover the expected result that the relaxation rate is enhanced by disorder. For sufficiently strong disorder, however, we find an opposite trend due to the reduction of scattering probabilities originating from the strong localization of the single-particle states. Long-range interaction in this regime produces a similar effect. The relaxation rate is found to scale with the interaction strength, however, the interplay between the implicit and the explicit character of the interaction produces an anomalous exponent.}}, author = {{Meier, Torsten and Varga, I. and Thomas, P. and Koch, S.W.}}, journal = {{Physical Review B}}, number = {{11}}, publisher = {{American Physical Society}}, title = {{{Dynamics of short-time-scale energy relaxation of optical excitations due to electron-electron scattering in the presence of arbitrary disorder}}}, doi = {{10.1103/PhysRevB.68.113104}}, volume = {{68}}, year = {{2003}}, } @article{43289, abstract = {{A microscopic approach is presented to compute nonlinear optical properties of semiconductor surfaces. The method uses quasiparticle wave functions and dispersions obtained from ab initio band-structure theory as an input for Bloch equations which describe the optical properties. Excitonic effects in the linear absorption spectra of the Si(111)- (2×1) surface are obtained by integrating equations of motion. To demonstrate the applicability of the approach for analyzing nonlinear optical properties, ultrafast light-intensity-dependent absorption changes of the surface exciton are predicted. The numerical results discuss the optical Stark effect and spectral oscillations of the surface exciton which can both be observed in pump-probe experiments.}}, author = {{Meier, Torsten and Reichelt, Matthias and Koch, S.W. and Rohlfing, M.}}, journal = {{Physical Review B}}, number = {{4}}, publisher = {{American Physical Society}}, title = {{{Theory for the nonlinear optical response of semiconductor surfaces: Application to the optical Stark effect and spectral oscillations of the Si(111)-(2x1) surface exciton}}}, doi = {{10.1103/PhysRevB.68.045330}}, volume = {{68}}, year = {{2003}}, } @article{43288, abstract = {{Signatures of exciton and two-exciton states in semiconductor systems are investigated experimentally and theoretically. A set of quantum well samples with different well widths is studied using coherent excitation spectroscopy. The experimental results are analyzed using a microscopic model demonstrating the importance of biexciton correlations and disorder effects. Additional numerical investigations of absorption changes in small nanorings are employed to analyze optical transitions from two-exciton to three-exciton resonances.}}, author = {{Meier, Torsten and Sieh, C. and Finger, E. and Stolz, W. and Rühle, W.W. and Koch, S.W. and Thomas, P.}}, journal = {{physica status solidi (b)}}, number = {{3}}, pages = {{537--540}}, publisher = {{WILEY‐VCH Verlag}}, title = {{{Signatures of biexcitons and triexcitons in coherent non-degenerate semiconductor optics}}}, doi = {{10.1002/pssb.200303183}}, volume = {{238}}, year = {{2003}}, } @misc{43640, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Zeitschrift für Gottesdienst und Predigt}}, number = {{1}}, pages = {{55}}, title = {{{Martin Bock u.a. (Hg.): Un-verschämtes Glück. Auf der Suche nach dem Heil im Leben. Grundfragen des Glaubens Band 2, Seminare und Projekte für Erwachsene, Gütersloh 2002}}}, volume = {{21}}, year = {{2003}}, } @article{43639, author = {{Schroeter-Wittke, Harald and Kirsner, Inge}}, journal = {{Predigtstudien I/2}}, pages = {{109--118}}, title = {{{9. Sonntag nach Trinitatis. Mt 25,14-30: Die Angst vorm Verlieren verlieren}}}, year = {{2003}}, } @article{23508, abstract = {{A nonequilibrium occupation distribution relaxes towards the Fermi-Dirac distribution due to electron-electron scattering even in finite Fermi systems. The dynamic evolution of this thermalization process assumed to result from an optical excitation is investigated numerically by solving a Boltzmann equation for the carrier populations using a one-dimensional disordered system. We focus on the short-time-scale behavior. The logarithmically long time scale associated with the glassy behavior of interacting electrons in disordered systems is not treated in our investigation. For weak disorder and short range interaction we recover the expected result that the relaxation rate is enhanced by disorder. For sufficiently strong disorder, however, we find an opposite trend due to the reduction of scattering probabilities originating from the strong localization of the single-particle states. Long-range interaction in this regime produces a similar effect. The relaxation rate is found to scale with the interaction strength, however, the interplay between the implicit and the explicit character of the interaction produces an anomalous exponent.}}, author = {{Varga, Imre and Thomas, Peter and Meier, Torsten and Koch, Stephan W.}}, issn = {{0163-1829}}, journal = {{Physical Review B}}, number = {{11}}, title = {{{Dynamics of short-time-scale energy relaxation of optical excitations due to electron-electron scattering in the presence of arbitrary disorder}}}, doi = {{10.1103/physrevb.68.113104}}, volume = {{68}}, year = {{2003}}, } @article{43284, abstract = {{The quantum dynamics of an ensemble of interacting electrons in an array of random scatterers is treated using a new numerical approach for the calculation of average values of quantum operators and time correlation functions in the Wigner representation. This approach combines both molecular dynamics and Monte Carlo methods and computes numerical traces and spectra of the relevant dynamical quantities such as momentum–momentum correlation functions and spatial dispersions. Considering, as an application, a system with fixed scatterers, the results clearly demonstrate that the many-particle interaction between the electrons can lead to an enhancement of the conductivity at intermediate densities.}}, author = {{Meier, Torsten and Filinov, V.S. and Thomas, P. and Varga, I. and Bonitz, M. and Fortov, V.E and Koch, S.W.}}, journal = {{Journal of Physics A: Mathematical and General}}, number = {{22}}, pages = {{5905--5911}}, publisher = {{IOP Publishing}}, title = {{{Electronic transport in a one-dimensional random array of scatterers}}}, doi = {{10.1088/0305-4470/36/22/311}}, volume = {{36}}, year = {{2003}}, } @article{44124, abstract = {{The new method for solving Wigner–Liouville's type equations and studying dynamics of quantum particles has been developed within the Wigner formulation of quantum statistical mechanics. This approach combines both molecular dynamics and Monte Carlo methods and computes traces and spectra of the relevant dynamical quantities. Considering, as an application, the quantum dynamics of an ensemble of interacting electrons in an array of random scatterers clearly demonstrates that the many-particle interaction between the electrons can lead to an enhancement of the electrical conductivity.}}, author = {{Meier, Torsten and Filinov, V. and Thomas, P. and Bonitz, M. and Fortov, V. and Varga, I.}}, journal = {{physica status solidi (b)}}, number = {{1}}, pages = {{40--46}}, title = {{{Wigner approach to quantum dynamics simulations of the interacting carriers in disordered systems}}}, doi = {{10.1002/pssb.200303617}}, volume = {{241}}, year = {{2003}}, } @inproceedings{44125, author = {{Meier, Torsten}}, isbn = {{1-55752-759-8}}, location = {{Tucson, Arizona United States}}, publisher = {{Optical Society of America}}, title = {{{Semiconductor photonic-crystal structures: Optical spectra and carrier dynamics}}}, doi = {{10.1364/FIO.2003.WU1}}, year = {{2003}}, } @book{40151, author = {{Fuchs, Christian and Hofkirchner, Wolfgang }}, publisher = {{Libri BOD}}, title = {{{Studienbuch Informatik und Gesellschaft (Informatics and Society)}}}, year = {{2003}}, } @inbook{42452, author = {{Fuchs, Christian and Stockinger, Gottfried}}, booktitle = {{In Causality, Emergence, Self-Organisation}}, editor = {{Arshinov, Vladimir and Fuchs, Christian}}, pages = {{303--321}}, publisher = {{NIA-Priroda}}, title = {{{The Autocreativity of Communication and the Re-Creativity of Actions in Social Systems}}}, year = {{2003}}, } @inbook{42451, author = {{Fuchs, Christian}}, booktitle = {{Causality, Emergence, Self-Organisation}}, editor = {{Arshinov, Vladimir and Fuchs, Christian}}, pages = {{195--244}}, publisher = {{NIA-Priroda}}, title = {{{Dialectical Philosophy and Self-Organisation}}}, year = {{2003}}, }