Time-dependent transport through a mesoscopic structure

Ned S. Wingreen, Antti Pekka Jauho, Yigal Meir

Research output: Contribution to journalArticle

291 Scopus citations

Abstract

A general formulation is presented of the nonlinear, time-dependent current through a small interacting region, where electron energies are changed by time-dependent voltages. An exact solution is obtained for the noninteracting case when the elastic coupling to the leads is independent of energy. Temporal phase coherence in a double-barrier tunneling structure produces ''ringing'' in the response of the current to a voltage pulse, which can be observed experimentally in the dc current by varying the pulse length in a train of voltage pulses. The nonlinear current due to an ac bias also shows complex time dependence.

Original languageEnglish (US)
Pages (from-to)8487-8490
Number of pages4
JournalPhysical Review B
Volume48
Issue number11
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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