Results 231 to 240 of about 28,479 (266)

A nanostructure quantum simulator

Science, 2018
Quantum Criticality Phase transitions occurring at absolute zero temperature, or quantum phase transitions (QPTs), can be grouped into broad categories called universality classes. The classification is based on the properties of the transition rather than the microscopic details of the ...
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Quantum Mechanics for Nanostructures

2010
The properties of new nanoscale materials, their fabrication and applications, as well as the operational principles of nanodevices and systems, are solely determined by quantum-mechanical laws and principles. This textbook introduces engineers to quantum mechanics and the world of nanostructures, enabling them to apply the theories to numerous ...
Vladimir V. Mitin, Dmitry I. Sementsov, Nizami Z. Vagidov   +2 more
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Positioning of quantum dots on metallic nanostructures

Nanotechnology, 2010
The capability to position individual emitters, such as quantum dots, near metallic nanostructures is highly desirable for constructing active optical devices that can manipulate light at the single photon level. The emergence of the field of plasmonics as a means to confine light now introduces a need for high precision and reliability in positioning ...
R K, Kramer, N, Pholchai, V J, Sorger, T J, Yim, R, Oulton, X, Zhang   +5 more
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New Quantum Nanostructures

2004
Several new metallic and semiconducting nanostructures may provide interesting substrates for observations involving quantum coherence. Boron-based nanotubes with beryllium atoms in the hexagonal faces should exhibit uniformly metallic properties with multiple conduction channels of disparate character. The apical dislocation in a carbon nanocone mixes
V. H. Crespi, P. Zhang, P. E. Lammert
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Optical quantum gates with semiconductor nanostructures

International Journal of Circuit Theory and Applications, 2001
An all optical implementation of quantum information processing with semiconductor macroatoms is presented. Our quantum hardware consists of an array of semiconductor quantum dots and the computational degrees of freedom, i.e. the qubits, are energy-selected interband optical transitions.
BIOLATTI, Eliana, IOTTI, Rita Claudia, ZANARDI P., ROSSI, FAUSTO   +3 more
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Image processing with quantum dot nanostructures

2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353), 2003
Image processing capabilities of a quantum dot nanoelectronic device structure are investigated. The device characteristics are compared with the cellular neural network model and system equations are presented. Certain characteristics of the device are demonstrated via simulations of the resultant dynamical system. Image smoothing, edge detection, and
Koray Karahaliloglu, Sina Balkir
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Fabrication of quantum dot and cavity nanostructures

2015 17th International Conference on Transparent Optical Networks (ICTON), 2015
In this tutorial, I'll discuss fabrication aspects of cavities that contain quantum dots as active emitters. As far as the quantum dots are concerned, the most established fabrication technique is self-assembled Stranski-Krastanov growth [1]. This mechanism relies on the supply of a material with a lattice constant larger than that of the substrate ...
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Nanostructures: Superlattices, Quantum Wires, and Quantum Dots

2014
The advanced microfabrication techniques can produce objects which are sufficiently small, that new quantum effects appear. After discussing superlattices and Bloch oscillations, we turn to the Landauer transmission channels and the quantized conductance of quantum wires.
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Quantum Optomechanics with Silicon Nanostructures

2013
Mechanical resonators are the most basic and ubiquitous physical systems known. In on-chip form, they are used to process high frequency signals in every cell phone, television, and laptop. They have also been in the last few decades in different shapes and forms, a critical part of progress in quantum information sciences with kilogram-scale mirrors ...
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Experimental investigations of the problem of the quantum jump with the help of superconductor nanostructures

Physics Letters, Section A: General, Atomic and Solid State Physics, 2020
Alexey Nikulov
exaly