1993/01/21 by Ned S. Wingreen, Antti-Pekka Jauho, Antti‐Pekka Jauho +1 · 3 citations
Engineering · Physics and Astronomy · #Coherence (philosophical gambling strategy) #Condensed matter physics #Current (fluid) #Electrical engineering #Mesoscopic physics #Nonlinear system #Physics #Pulse (music) #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Ringing #Semiconductor Quantum Structures and Devices #Semiconductor materials and devices #Voltage #cond-mat
paper · pdf · doi:10.1103/physrevb.48.8487
REVTEX, 12 pages + 2 postscript figures (also available as hard copies from [email protected]) Nordita preprint 93/7
arxiv created 1993/01/21 · openalex publication_date 1993/09/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.