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Lecture 5A: Correlations and Entanglement
Online Presentations | 20 Aug 2008 | Contributor(s):: Supriyo Datta
Objective: To relate the one-electron picture used throughout these lectures to the more general but less tractable many-particle picture that underlies it. We introduce this new viewpoint using the example of Coulomb blockaded electronic devices that are difficult to model within the picture...
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Lecture 5B: Correlations and Entanglement
Online Presentations | 20 Aug 2008 | Contributor(s):: Supriyo Datta
Objective: To relate the one-electron picture used throughout these lectures to the more general but less tractable many-particle picture that underlies it. We introduce this new viewpoint using the example of Coulomb blockaded electronic devices that are difficult to model within the picture...
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Nanoelectronics and the Meaning of Resistance
Courses | 20 Aug 2008 | Contributor(s):: Supriyo Datta
The purpose of this series of lectures is to introduce the "bottom-up" approach to nanoelectronics using concrete examples. No prior knowledge of quantum mechanics or statistical mechanics is assumed; however, familiarity with matrix algebra will be helpful for some topics. Day 1: What...
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ABACUS - Assembly of Basic Applications for Coordinated Understanding of Semiconductors
Tools | 16 Jul 2008 | Contributor(s):: Xufeng Wang, Daniel Mejia, Dragica Vasileska, Gerhard Klimeck
One-stop-shop for teaching semiconductor devices
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Piece-Wise Constant Potential Barriers Tool
Tools | 30 Jun 2008 | Contributor(s):: Xufeng Wang, Samarth Agarwal, Gerhard Klimeck, Dragica Vasileska, Mathieu Luisier, Jean Michel D Sellier
Transmission and the reflection coefficient of a five, seven, nine, eleven and 2n-segment piece-wise constant potential energy profile
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Nano Carbon: From ballistic transistors to atomic drumheads
Online Presentations | 14 May 2008 | Contributor(s):: Paul L. McEuen
Carbon takes many forms, from precious diamonds to lowly graphite. Surprisingly, it is the latter that is the most prized by nano physicists. Graphene, a single layer of graphite, can serve as an impenetrable membrane a single atom thick. Rolled up into a nanometer-diameter cylinder--a carbon...
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Zhengping Jiang
Zhengping Jiang joined Professor Klimeck's research group in August 2008 at Purdue University. Zhengping is currently a Ph.D student in this group.[[BR]]He received Bachelor Degree in Electronic...
https://nanohub.org/members/28558
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Matdcal
Tools | 30 Jan 2008 | Contributor(s):: Kirk Bevan
Non-equilibrium Green's Function Density Functional Theory Simulator
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Quang Nguyen
https://nanohub.org/members/28087
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Introduction to Coulomb Blockade Lab
Teaching Materials | 31 Mar 2008 | Contributor(s):: Bhaskaran Muralidharan, Xufeng Wang, Gerhard Klimeck
The tutorial is based on the Coulomb Blockade Lab available online at Coulomb Blockade Lab. Students are introduced to the concepts of level broadening and charging energies in artificial atoms (single quantum dots) and molecules (coupled quantum dots).A tutorial level introduction to the...
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Coulomb Blockade Simulation
Tools | 05 Jul 2006 | Contributor(s):: Xufeng Wang, Bhaskaran Muralidharan, Gerhard Klimeck
Simulate Coulomb Blockade through Many-Body Calculations in a single and double quantum dot system
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Nanoelectronic Modeling: Multimillion Atom Simulations, Transport, and HPC Scaling to 23,000 Processors
Online Presentations | 07 Mar 2008 | Contributor(s):: Gerhard Klimeck
Future field effect transistors will be on the same length scales as “esoteric” devices such as quantum dots, nanowires, ultra-scaled quantum wells, and resonant tunneling diodes. In those structures the behavior of carriers and their interaction with their environment need to be fundamentally...
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MCW07 A Quantum Open Systems Approach to Molecular-Scale Devices
Online Presentations | 25 Feb 2008 | Contributor(s):: Yongqiang Xue
Experimental advances in electrically and optically probing individual molecules have provided new insights into the behavior of single quantum objects and their interaction with the nanoenvironments without requiring ensemble average. Molecular-scale devices are open quantum systems whose...
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MCW07 Physics of Contact Induced Current Asymmetry in Transport Through Molecules
Online Presentations | 25 Feb 2008 | Contributor(s):: Bhaskaran Muralidharan, owen miller, Neeti Kapur, Avik Ghosh, Supriyo Datta
We first outline the qualitatively different physics involved in the charging-induced current asymmetries in molecular conductors operating in the strongly coupled (weakly interacting) self-consistent field (SCF) and the weakly coupled (strongly interacting) Coulomb Blockade (CB) regimes. The CB...
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Renaud DAVIOT
__Researcher at [http://inl.cnrs.fr/ INL]__[[BR]]Reconfigurable digital cells with CNT, Nanowires, molecular devices[[BR]]__Teaching at [http://www.cpe.fr/ CPE Lyon] (France)__[[BR]]FPGA, VHDL,...
https://nanohub.org/members/26856
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Exploring Physical and Chemical control of molecular conductance: A computational study
Online Presentations | 31 Jan 2008 | Contributor(s):: Barry D. Dunietz
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Finite Height Quantum Well: an Exercise for Band Structure
Teaching Materials | 31 Jan 2008 | Contributor(s):: David K. Ferry
Use the Resonant Tunneling Diodes simulation tool on nanoHUB to explore the effects of finite height quantum wells. Looking at a 2 barrier device, 300 K, no bias, other standard variables, and 3 nm thick barriers and a 7 nm quantum well, determine the energies of the two lowest quasi-bound states.
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Path Integral Monte Carlo
Tools | 13 Dec 2007 | Contributor(s):: John Shumway, Matthew Gilbert
Tool Description
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Application of the Keldysh Formalism to Quantum Device Modeling and Analysis
Papers | 14 Jan 2008 | Contributor(s):: Roger Lake
The effect of inelastic scattering on quantum electron transport through layered semi-conductor structures is studied numerically using the approach based on the non-equilibrium Green's function formalism of Keldysh, Kadanoff, and Baym. The Markov assumption is not made, and the energy coordinate...
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Electron-Phonon and Electron-Electron Interactions in Quantum Transport
Papers | 14 Jan 2008 | Contributor(s):: Gerhard Klimeck
The objective of this work is to shed light on electron transport through sub-micron semi-conductor structures, where electronic state quantization, electron-electron interactions and electron-phonon interactions are important. We concentrate here on the most developed vertical quantum device,...