Quantum noise with exchange and tunnelling: Predictions for a two-particle scattering experiment with time-dependent oscillatory potentials

E. Colomés, D. Marian, X. Oriols

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1 Citation (Scopus)

Abstract

© 2016 IOP Publishing Ltd and SISSA Medialab srl. Quantum noise with exchange and tunnelling is studied within time-dependent wave packets. A novel expression for the quantum noise of two identical particles injected simultaneously from opposite sides of a tunnelling barrier is presented. Such quantum noise expression provides a physical (nonspurious) explanation for the experimental detection of two electrons at the same side under static potentials. Numerical simulations of the two-particle scattering probabilities in a double barrier potential with an oscillatory well are performed. The dependence of the quantum noise on the electron energy and oscillatory frequency is analysed. The peculiar behaviour of the dependence of the quantum noise on such parameters is proposed as a test about the soundness of this novel quantum noise expression, for either static or oscillatory potentials.
Original languageEnglish
Article number054009
JournalJournal of Statistical Mechanics: Theory and Experiment
Volume2016
Issue number5
DOIs
Publication statusPublished - 20 May 2016

Keywords

  • current fluctuations
  • mesoscopic systems (theory)
  • quantum transport

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