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40 papers
Exact solution of the three-boson problem at vanishing energy
Christophe Mora, Alexander O. Gogolin, Reinhold Egger
A zero range approach is used to model resonant two-body interactions between three identical bosons. A dimensionless phase parametrizes the three-body boundary condition while the…
Phonon-phonon interactions and phonon damping in carbon nanotubes
A. De Martino, R. Egger, A. O. Gogolin
We formulate and study the effective low-energy quantum theory of interacting long-wavelength acoustic phonons in carbon nanotubes within the framework of continuum elasticity theo…
Interaction-induced harmonic frequency mixing in quantum dots
M. Thorwart, R. Egger, A. O. Gogolin
We show that harmonic frequency mixing in quantum dots coupled to two leads under the influence of time-dependent voltages of different frequency is dominated by interaction effect…
Counting statistics for the Anderson impurity model: Bethe ansatz and Fermi liquid study
A. O. Gogolin, R. M. Konik, A. W. W. Ludwig +1
We study the counting statistics of charge transport in the Anderson impurity model (AIM) employing both Keldysh perturbation theory in a Fermi liquid picture and the Bethe ansatz.…
Analytical solution of the bosonic three-body problem
Alexander O. Gogolin, Christophe Mora, Reinhold Egger
We revisit the problem of three identical bosons in free space, which exhibits a universal hierarchy of bound states (Efimov trimers). Modelling a narrow Feshbach resonance within…
Vibration-induced correction to the current through a single molecule
R. Egger, A. O. Gogolin
We provide analytical results for the perturbative correction to the current-voltage relation through a vibrating molecule for weak electron-phonon coupling. The nonlinear conducta…