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Simulation of Electron Decoherence Induced by Carrier-Carrier Scattering

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Abstract

We study, by means of numerical simulations, the decoherence induced by a low-energy carrier-carrier scattering event on the spatial degrees of freedom of one of the two distinguishable carriers. The two-particle time-dependent Schrödinger equation is solved in the center of mass frame and the decoherence is quantified, at a number of time steps, by evaluating the entanglement between the two particles. We find that the decoherence rate is higher for higher kinetic energy of the particles and that a scattering between two carriers with opposite charge produces more decoherence than one between carriers with equal charge. The parallel algorithm used for the entanglement calculation is described.

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Authors and Affiliations

  1. INFM National Center on nanoStructures and bioSystems at Surfaces (S3), Via Campi 213/A, 41100, Modena, Italy

    Andrea Bertoni

  2. Advanced Research Center on Electronic Systems “E. De Castro”, Università di Bologna, Italy

    Andrea Bertoni

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  1. Andrea Bertoni
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Bertoni, A. Simulation of Electron Decoherence Induced by Carrier-Carrier Scattering. Journal of Computational Electronics 2, 291–295 (2003). https://doi.org/10.1023/B:JCEL.0000011440.86454.13

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  • DOI: https://doi.org/10.1023/B:JCEL.0000011440.86454.13

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