2003/05/19 by T. Vorrath, Tobias Brandes, T. Brandes · 1 citation
Engineering · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.68.035309
published as Phys. Rev. B 68, 035309 (2003) · 12 pages, 6 figures, to appear in Phys. Rev. B
arxiv created 2003/05/19 · openalex publication_date 2003/07/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We calculate the stationary current through two double quantum dots which are interacting via a common phonon environment. Numerical and analytical solutions of a master equation in the stationary limit show that the current can be increased as well as decreased due to a dissipation mediated interaction. This effect is closely related to collective, spontaneous emission of phonons (Dicke super-radiance and subradiance effect), and the generation of a ``cross-coherence'' with entanglement of charges in singlet or triplet states between the dots. Furthermore, we discuss an inelastic ``current switch'' mechanism by which one double dot controls the current of the other.