@article{AbelCelaniVergenietal.2001,
  author    = {Abel, Markus and Celani, A. and Vergeni, D. and Vulpiani, A.},
  title     = {Front propagation in laminar flows},
  year      = {2001},
  abstract  = {The Problem of front propagation in flowing media is addressed for laminar velocity fields in two dimensions. Three representative cases are discussed: stationary cellular flow, stationary shear flow, and percolating flow. Production terms of Fisher-Kolmogorov-Petrovskii-Piskunov type and of Arrhenius type are considered under the assumption of no feedback of the concentration on the velocity. Numerical simulations of advection-reaction-diffusion equations have been performed by an algorithm based on discrete-time maps. The results show a generic enhancement of the speed of front propagation by the underlying flow. For small molecular diffusivity, the front speed <i>V<sub><i>f</sub> depends on the typical flow velocity <i>U as<sup> </sup>a power law with an exponent depending on the topological properties of the flow, and on the ratio of reactive and advective time scales. For open-streamline flows we find always<sup> </sup><i>V<sub><i>f</sub>~<i>U, whereas for cellular flows we observe <i>V<sub><i>f</ sub>~<i>U<sup>1/4</sup> for fast advection and <i>V<sub><i>f</sub>~<i>U<sup>3/4</sup> for slow advection.},
  language  = {en}
}
@article{AfshaarvahidHeuerMenzeletal.2001,
  author    = {Afshaarvahid, Shahraam and Heuer, Axel and Menzel, Ralf and Munch, Jesper},
  title     = {Temporal structure of stimulated-Brillouin-scattering reflectivity considering transversal-mode development},
  year      = {2001},
  language  = {en}
}
@article{AhlersZillmerPikovskij2001,
  author    = {Ahlers, Volker and Zillmer, R{\"u}diger and Pikovskij, Arkadij},
  title     = {Lyapunov exponents in disordered chaotic systems : avoided crossing and level statistics},
  year      = {2001},
  abstract  = {The behavior of the Lyapunov exponents (LEs) of a disordered system consisting of mutually coupled chaotic maps with different parameters is studied. The LEs are demonstrated to exhibit avoided crossing and level repulsion, qualitatively similar to the behavior of energy levels in quantum chaos. Recent results for the coupling dependence of the LEs of two coupled chaotic systems are used to explain the phenomenon and to derive an approximate expression for the distribution functions of LE spacings. The depletion of the level spacing distribution is shown to be exponentially strong at small values. The results are interpreted in terms of the random matrix theory.},
  language  = {en}
}
@article{AnishchenkoVadivasovaKopeikinetal.2001,
  author    = {Anishchenko, Vadim S. and Vadivasova, T. E. and Kopeikin, A. S. and Kurths, J{\"u}rgen and Strelkova, G. I.},
  title     = {Effect of noise on the relaxation to an invariant probability measure of nonhyperbolic chaotic attractors},
  year      = {2001},
  language  = {en}
}
@article{AudenaertEisertJaneetal.2001,
  author    = {Audenaert, Katrien and Eisert, Jens and Jane, E. and Plenio, M. B. and Virmani, S. and Moor, B. D.},
  title     = {The asymptotic relative entropy of entanglement},
  year      = {2001},
  abstract  = {We present an analytical formula for the asymptotic relative entropy of entanglement for Werner states of arbitrary dimensionality. We then demonstrate its validity using methods from convex optimization. This is the first case in which the value of a subadditive entanglement measure has been obtained in the asymptotic limit. This formula also gives the sharpest known upper bound on the distillable entanglement of these states.},
  language  = {en}
}
@article{AvilovLepeshovPietschetal.2001,
  author    = {Avilov, Anatoly S. and Lepeshov, G. G. and Pietsch, Ullrich and Tsirelson, Vladimir G.},
  title     = {Multipole analysis of the electron density and electrostatic potential in Germanium by high-resolution electron diffraction},
  issn      = {0022-3697},
  year      = {2001},
  language  = {en}
}
@book{BackhausSchoen2001,
  author    = {Backhaus, Udo and Sch{\"o}n, Lutz-Helmut},
  title     = {Physik plus : Kl. 8, [Hauptbd.], Gymnasium Nordrhein-Westfalen},
  editor    = {Mikelskis, Helmut and Wilke, Hans-Joachim},
  publisher = {Volk und Wissen Verl.},
  address   = {Berlin},
  isbn      = {3-06-020840-9},
  pages     = {136 S.},
  year      = {2001},
  language  = {de}
}
@article{BeckStielLeupoldetal.2001,
  author    = {Beck, Michael and Stiel, H. and Leupold, Dieter and Winter, Bernd and Pop, D. and Vogt, U. and Spitz, Christian},
  title     = {Evaluation of the energetic position of the lowest excited singlet state of ß-carotene by NEXAFS and photoemission spectroscopy},
  year      = {2001},
  language  = {en}
}
@phdthesis{Becker2001,
  author    = {Becker, Thomas},
  title     = {3D-Spektroskopie hintergrundkontaminierter Einzelobjekte in Galaxien der lokalen Gruppe},
  pages     = {110 S.},
  year      = {2001},
  language  = {de}
}
@article{BergstedtHornMichelskisetal.2001,
  author    = {Bergstedt, Christel and Horn, Martin Erik and Michelskis, Helmut and Winter, Rolf},
  title     = {Energie},
  series = {Naturwissenschaften : Biologie, Chemie, Physik},
  volume    = {8},
  journal   = {Naturwissenschaften : Biologie, Chemie, Physik},
  publisher = {Volk-und-Wissen-Verl.},
  address   = {Berlin},
  isbn      = {3-06-020935-9},
  pages     = {64 S.},
  year      = {2001},
  language  = {de}
}