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Controlling observables in time-dependent quantum transport

The theory of time-dependent quantum transport addresses the question: How do electrons flow through a junction under the influence of an external perturbation as time goes by? In this paper, we invert this question and search for a time-dependent bi

Externí odkaz: http://arxiv.org/abs/1407.2554

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How to interpret the spectral density of the Keldysh nonequilibrium Green's function

Autor: Pototzky, K. J., Gross, E. K. U.

This paper is devoted to the study and interpretation of the spectral function $\mathbf{A}(\omega, T)$ of the Keldysh nonequilibrium Green's function. The spatial diagonal of the spectral function is often interpreted as a time-dependent local densit

Externí odkaz: http://arxiv.org/abs/1405.5984

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Optimizing the Cooper pair splitting efficiency in a Y-shaped junction

Autor: Pototzky, K. J., Gross, E. K. U.

This letter is devoted to the optimization of the Cooper pair splitting efficiency in a Y-shaped junction. The latter consists of two quantum dots, one superconducting and two normal leads. We tailor the bias in the two normal leads such that the Coo

Externí odkaz: http://arxiv.org/abs/1405.2748

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Properties of odd nuclei and the impact of time-odd mean fields: A systematic Skyrme-Hartree-Fock analysis

Autor: Pototzky, K. J., Erler, J., Reinhard, P. -G., Nesterenko, V. O.

Publikováno v: Eur.Phys.J.A46:299-313,2010

We present a systematic analysis of the description of odd nuclei by the Skyrme-Hartree-Fock approach augmented with pairing in BCS approximation and blocking of the odd nucleon. Current and spin densities in the Skyrme functional produce time-odd me

Externí odkaz: http://arxiv.org/abs/1008.0535

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