Modulating quantum transport by transient chaos
Abstract
We propose a scheme to modulate quantum transport in nanostructures based on classical chaos. By applying external gate voltage to generate a classically forbidden region, transient chaos can be generated, and the escape rate associated with the underlying non-attracting chaotic set can be varied continuously by adjusting the gate voltage. We demonstrate that this can effectively modulate the quantum conductance-fluctuation patterns. A theory based on self-energies and the spectrum of the generalized non-Hermitian Hamiltonian of the open quantum system is developed to understand the modulation mechanism.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 27, 2012
- Source ID
- 10.1063/1.3690046
Entities
People
- Liang Huang
- Louis M Pecora
- Rui Yang
- Ying-Cheng Lai
Organizations
- Air Force Office of Scientific Research
- Arizona State University
- Lanzhou University
- National Natural Science Foundation of China
- Office of Naval Research
- United States Naval Research Laboratory