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• "Nonlinear quantum stochastic resonance", Grifoni, Hänggi, 1996

  Publication

  We investigate quantum stochastic resonance (QSR) in the periodically driven spin-boson system with Ohmic dissipation. For the special case α=1/2 of...

  Publication on epub.uni-regensburg.de: "Nonlinear quantum stochastic resonance" (external link, opens in a new window)

• "Dynamics of the dissipative two-state system under ac modulation of bias and coupling energy", Grifoni, 1996

  Publication

  We consider a driven dissipative two-state system subject to periodic modulation of both of its two parameters. The exact master equation that governs...

  Publication on epub.uni-regensburg.de: "Dynamics of the dissipative two-state system under ac modulation of bias and coupling energy" (external link, opens in a new window)

• "Cooperative effects in the nonlinearly driven spin-boson system", Grifoni, Sassetti, Hänggi, Weiss, 1995

  Publication

  We study the quantum dynamics of a periodically driven biased two-state system which additionally is subject to either Ohmic or to frequency-dependent...

  Publication on epub.uni-regensburg.de: "Cooperative effects in the nonlinearly driven spin-boson system" (external link, opens in a new window)

• "Dissipative transport in dc-ac–driven tight-binding lattices", Hartmann, Grifoni, Hänggi, 1997

  Publication

  We investigate the incoherent dissipative quantum transport of a particle in a periodic lattice being driven nonlinearly by dc-ac fields. The particle...

  Publication on epub.uni-regensburg.de: "Dissipative transport in dc-ac–driven tight-binding lattices" (external link, opens in a new window)

• "Coherent and Incoherent Quantum Stochastic Resonance", Grifoni, Hänggi, 1996

  Publication

  We study quantum stochastic resonance (QSR) in the periodically driven biased spin-boson system. The amplitude and the phase of the nonlinear response...

  Publication on epub.uni-regensburg.de: "Coherent and Incoherent Quantum Stochastic Resonance" (external link, opens in a new window)

• "Exact master equations for driven dissipative tight-binding models", Grifoni, Sassetti, Weiss, 1996

  Publication

  The dynamics of the driven dissipative two-state system is formulated in terms of an exact nonconvolutive master equation. The kernel is expressed as...

  Publication on epub.uni-regensburg.de: "Exact master equations for driven dissipative tight-binding models" (external link, opens in a new window)

• "Quantum tunneling and stochastic resonance", Grifoni, Hartmann, Berchtold, Hänggi, 1996

  Publication

  Stochastic resonance (SR) occurs in nonlinear dynamical systems when the response to a weak coherent input is enhanced by the presence of noise. While...

  Publication on epub.uni-regensburg.de: "Quantum tunneling and stochastic resonance" (external link, opens in a new window)

• "Comment on “Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields” by Wang and Zhao", Grifoni, Hartmann, Hänggi, 1997

  Publication

  Recent results on the dynamics of a two-state system driven by dc-ac fields are discussed. We show that the approximation put forward in the work by...

  Publication on epub.uni-regensburg.de: "Comment on “Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields” by Wang and Zhao" (external link, opens in a new window)

• "Dissipation, decoherence and preparation effects in the spin-boson system", Grifoni, Paladino, Weiss, 1999

  Publication

  The dynamics of the reduced density matrix of the driven dissipative two-state system is studied for a general diagonal/off-diagonal initial state. We...

  Publication on epub.uni-regensburg.de: "Dissipation, decoherence and preparation effects in the spin-boson system" (external link, opens in a new window)

• "Plasmon and charge quantization effects in a double-barrier quantum wire", Braggio, Grifoni, Sassetti, Napoli, 2000

  Publication

  The nonlinear transport properties of a single-channel quantum wire in the presence of two impurities are investigated. Treating the electron...

  Publication on epub.uni-regensburg.de: "Plasmon and charge quantization effects in a double-barrier quantum wire" (external link, opens in a new window)