Author: Buot, Felix A.

Source: Journal of Computational and Theoretical Nanoscience, Volume 4, Number 5, August 2007 , pp. 1037-1082(46)

Publisher: American Scientific Publishers

Abstract:

Quantum superfield theoretical technique in quantum dynamics offers a general formulation of nonequilibrium many-body quantum physics in real-time axis, in contrast with the use of time-contour approach in previous formalisms. When coupled with the author's lattice Weyl transform methodology in solid-state theory, the resulting formalism have been shown to be a powerful theoretical basis for computational nanoscience and nanotechnology, where ultrafast and highly nonlinear behavior due to quantum effects are the dominant mechanisms. We give a review of the formalism and discuss some of its successful applications in analyzing highly nonlinear and ultrafast THz nanodevices. We also elucidate the fundamental aspects of the lattice Weyl transform technique and discrete phase space quantum mechanics.

Keywords: NONEQUILIBRIUM QUANTUM SUPERFIELD THEORY; QUANTUM TRANSPORT; RESONANT TUNNELING DEVICES; NANODEVICE THZ SOURCES; LATTICE WEYL TRANSFORM; DISCRETE PHASE SPACE OVER FINITE FIELDS; NONEQUILIBRIUM SUPERCONDUCTIVITY

Document Type: Review article

DOI: http://dx.doi.org/10.1166/jctn.2007.009

Publication date: 2007-08-01

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• Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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