Search Results - "Korsch, H.J."

An algebraic solution of driven single band tight binding dynamics by Korsch, H.J., Mossmann, S.

“…The dynamics of the driven single band tight binding model for Wannier–Stark systems is formulated and solved using a dynamical algebra. This Lie algebraic…”
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Calculation of Wannier-Bloch and Wannier-Stark states by GLÜCK, M, KOLOVSKY, A. R, KORSCH, H. J, MOISEYEV, N

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Some remarks on complex Hamiltonian systems by Kaushal, R.S, Korsch, H.J

“…The analyticity property of the one-dimensional complex Hamiltonian system H( x, p)= H 1( x 1, x 2, p 1, p 2)+ i H 2( x 1, x 2, p 1, p 2) with p= p 1+i x 2, x=…”
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Nonlinear supersymmetric (Darboux) covariance of the Ermakov–Milne–Pinney equation by Ioffe, M.V, Korsch, H.J

“…It is shown that the nonlinear Ermakov–Milne–Pinney equation ρ″+ v( x) ρ= a/ ρ 3 obeys the property of covariance under a class of transformations of its…”
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A Generalized Entropy Measuring Quantum Localization by Mirbach, B., Korsch, H.J.

“…We present an entropy concept measuring quantum localization in dynamical systems based on time averaged probability densities. The suggested entropy concept…”
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A quantum cable car for Wannier–Stark ladders by Glück, M., Kolovsky, A.R., Korsch, H.J.

“…This Letter studies the dynamics of transitions between the levels of a Wannier–Stark ladder induced by a resonant periodic driving. The analysis of the…”
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Bloch particle in the presence of dc and ac fields by Glück, M., Kolovsky, A.R., Korsch, H.J.

“…In this Letter we study the metastable states of a Bloch particle in the presence of external ac and dc fields. For the resonance condition between the period…”
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Phase-space localization and level spacing distributions for a driven rotor with mixed regular/chaotic dynamics by Gorin, T., Korsch, H.J., Mirbach, B.

“…The classical-quantum correspondence for systems with mixed regular and chaotic dynamics can be conveniently analyzed by the quantum Husimi phase-space…”
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Perturbation theory for Wannier resonance states affected by ac field by Glück, M., Kolovsky, A.R., Korsch, H.J.

“…The paper studies the effect of a weak ac field on the Wannier states, which are known to be the metastable states of a quantum particle in a periodic…”
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Bloch oscillations of Bose-Einstein condensates: breakdown and revival by Witthaut, D, Werder, M, Mossmann, S, Korsch, H J

“…We investigate the dynamics of Bose-Einstein condensates in a tilted one-dimensional periodic lattice within the mean-field (Gross-Pitaevskii) description…”
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Diffusion on a chaotic attractor by Glück, M., Kolovsky, A.R., Korsch, H.J.

“…We study the process of chaotic diffusion for a simple 1D physical system: a particle moving in a potential, which is periodic in space and time. Both,…”
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About universality of lifetime statistics in quantum chaotic scattering by Glück, M., Kolovsky, A.R., Korsch, H.J.

“…The statistics of the resonance widths and the behavior of the survival probability is studied in a particular model of quantum chaotic scattering (a particle…”
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Nonlinear dynamics of spin-boson systems: Quantum mechanical and quasi-classical treatment by Steib, R., Schoendorff, J.L., Korsch, H.J., Reineker, P.

“…We investigate a quasi-particle coupled to polarization vibrations in a dimer model. This model (harmonic oscillator coupled to a two-level system) is…”
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Damped Bloch oscillations of cold atoms in optical lattices by Kolovsky, A. R., Ponomarev, A. V., Korsch, H. J.

“…The paper studies Bloch oscillations of cold neutral atoms in the optical lattice. The effect of spontaneous emission on the dynamics of the system is analyzed…”
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Inelastic transitions in vibrationally excited Na sub 2 induced by intermediate-energy-electron impact by Kumar, S.V.K., Ziegler, G., Korsch, H.J., Bergmann, K., Meyer, H.

“…Differential cross sections for rotational transitions from vibrationally excited sodium dimers ({ital v}=2 and {ital v}=31) by electron impact at 150 eV have…”
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Rotational excitation in two-center Coulomb-scattering systems: Application to electron-molecule collisions by Ernesti, A, Gote, M, Korsch, HJ

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Vibrational transitions in electron-diatomic-molecule collisions at intermediate energies by ERNESTI, A, KORSCH, H. J

“…A closed-form expression is derived for angular-resolved vibrational tranistion probabilities of diatomic molecules in electron scattering using a simple…”
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Semiclassical calculation of off-shell T -matrix elements by Korsch, H. J.

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Lifetime broadening of Wannier-Stark states under strong Zener tunneling in superlattices by Rosam, B., Meinhold, D., Loser, E., Lyssenko, V.G., Leo, K., Gluck, M., Kolovsky, A.R., Korsch, H.J., Kohler, K.

“…Summary form only given. The electronic structure of a periodic potential under a static electric field is of high interest due to its basic importance for…”
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Quantum-mechanical impulse approximation for vibro-rotational excitation in atom-diatom collisions by Korsch, H. J., Philipp, V.

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