Quantum geometric exciton drift velocity

Velocity, Silt and Larval Drift

Quantum Monte Carlo treatment of elastic exciton-exciton scattering

We calculate cross sections for low energy, elastic, bulk, s-wave exciton-exciton scattering within the single-band effective mass approximation. Unlike previous theoretical approaches, we give a complete, nonperturbative treatment of the four-particle scattering problem. Diffusion Monte Carlo is used to calculate the essentially exact energies of scattering states, from which phase shifts are ...

Electron Drift Velocity in the μBooNE TPC

As the readout time associated with a trigger of μBooNE is proportional to the drift time, it is important to know the drift velocity precisely. Likewise, the reconstruction of track position from the drift time of ionization electrons depends on knowledge of the drift velocity. The nominal drift field in μBooNE is E = 500V/cm, and the peak electric field at the surface of the collection wires ...

Electron ’ drift velocity and diffusivity in germanium

Experimental results for electron drift velocity and diffusivity in germanium, obtained with the time-of-flight technique in hyperpure material. are presented for temperatures between 8 and 240 K and fields between 1 and 104,V/cm oriented along (111) and (100) directions. An anisotropy of the drift velocity and of the diffusion coefficient is found with the electric field applied along (111) an...

Exciton-exciton and exciton-phonon interactions in an interfacial GaAs quantum dot ensemble

G. Moody,1,2 M. E. Siemens,1,* A. D. Bristow,1,† X. Dai,1,‡ D. Karaiskaj,1,§ A. S. Bracker,3 D. Gammon,3 and S. T. Cundiff1,2,‖ 1JILA, University of Colorado & National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA 2Department of Physics, University of Colorado, Boulder, Colorado 80309-0390, USA 3Naval Research Laboratory, Washington, DC 20375, USA (Received 2 August ...