Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1996-10-03
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
31 pages, 11 Postscript figures. Paper to be published in "Mesoscopic Electron Transport", edited by L. Kowenhoven, G. Schoen
Scientific paper
We present a discussion of the admittance (ac-conductance) and nonlinear I-V-characteristic for a number of mesoscopic conductors. Our approach is based on a generalization of the scattering approach which now includes the effects of the (long-range) Coulomb interaction. We discuss the admittance of a wire with an impurity and with a nearby gate. We extend a discussion of the low-frequency admittance of a quantum point contact to investigate the effects of the gates used to form the contact. We discuss the nonlinear I-V characteristic of a resonant double barrier structure and discuss the admittance for the double barrier for a large range of frequencies. Our approach emphasizes the overall conservation of charge (gauge invariance) and current conservation and the resulting sum rules for the admittance matrix and nonlinear transport coefficients.
Buttiker Markus
Christen Thomas
No associations
LandOfFree
Admittance and Nonlinear Transport in Quantum Wires, Point Contacts, and Resonant Tunneling Barriers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Admittance and Nonlinear Transport in Quantum Wires, Point Contacts, and Resonant Tunneling Barriers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Admittance and Nonlinear Transport in Quantum Wires, Point Contacts, and Resonant Tunneling Barriers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-550453