Zobrazeno 1 - 10
of 530
pro vyhledávání: '"Loos, J. A."'
Publikováno v:
In Journal of Quantitative Spectroscopy and Radiative Transfer September 2020 253
Publikováno v:
Phys. Rev. B 89, 155133 (2014)
We consider the steady-state thermoelectric transport through a vibrating molecular quantum dot that is contacted to macroscopic leads. For moderate electron-phonon interaction strength and comparable electronic and phononic timescales, we investigat
Externí odkaz:
http://arxiv.org/abs/1311.6276
Publikováno v:
Physica Scripta T 151, 014039 (2012)
We consider transport through a vibrating molecular quantum dot contacted to macroscopic leads acting as charge reservoirs. In the equilibrium and nonequilibrium regime, we study the formation of a polaron-like transient state at the quantum dot for
Externí odkaz:
http://arxiv.org/abs/1204.0090
Autor:
Stenzel, O., Schmidt, V., Hassfeld, H., Thiedmann, R., Koster, L. J. A., Oosterhout, S. D., van Bavel, S. S., Wienk, M. M., Loos, J., Janssen, R. A. J.
Publikováno v:
Annals of Applied Statistics 2011, Vol. 5, No. 3, 1920-1947
A spatial stochastic model is developed which describes the 3D nanomorphology of composite materials, being blends of two different (organic and inorganic) solid phases. Such materials are used, for example, in photoactive layers of hybrid polymer zi
Externí odkaz:
http://arxiv.org/abs/1111.5145
Publikováno v:
Phys. Rev. B 84, 125131 (2011)
We consider a quantum dot, affected by a local vibrational mode and contacted to macroscopic leads, in the non-equilibrium steady-state regime. We apply a variational Lang-Firsov transformation and solve the equations of motion of the Green functions
Externí odkaz:
http://arxiv.org/abs/1105.0576
Publikováno v:
J. Phys. Conf. Series 220, 012023 (2010)
We present a Green's function based treatment of the effects of electron-phonon coupling on transport through a molecular quantum dot in the quantum limit. Thereby we combine an incomplete variational Lang-Firsov approach with a perturbative calculat
Externí odkaz:
http://arxiv.org/abs/1005.5511
Publikováno v:
J. Phys.: Condens. Matter 21 (2009) 39560
To describe the interaction of molecular vibrations with electrons at a quantum dot contacted to metallic leads, we extend an analytical approach that we previously developed for the many-polaron problem. Our scheme is based on an incomplete variatio
Externí odkaz:
http://arxiv.org/abs/0905.0248
Publikováno v:
Physical Review B 77, 085117 (2008)
We consider transport through finite quantum systems such as quantum barriers, wells, dots or junctions, coupled to local vibrational modes in the quantal regime. As a generic model we study the Holstein-Hubbard Hamiltonian with site-dependent potent
Externí odkaz:
http://arxiv.org/abs/0712.1354
Publikováno v:
Journal of Physics: Condensed Matter 18, 7299-7312 (2006)
The phonon spectral function of the one-dimensional Holstein model is obtained within weak and strong-coupling approximations based on analytical self-energy calculations. The characteristic excitations found in the limit of small charge-carrier dens
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604040
Publikováno v:
J. Phys.: Condens. Matter 18 2453-2472 (2006)
An analytical approach to the one-dimensional spinless Holstein model is proposed, which is valid at finite charge-carrier concentrations. Spectral functions of charge carriers are computed on the basis of self-energy calculations. A generalization o
Externí odkaz:
http://arxiv.org/abs/cond-mat/0508712