This is the first time I am hearing about quantum dots. I gathered some valuable information about it by browsing on the internet. They are widely used in solid-state quantum computation. Highly sensitive cellular imaging is another area which uses quantum dots. They are also extensively used for real-time tracking of molecules and cells over prolonged periods of time. A lot of research has been going on in relation to the new areas in which they can be used. I am sure that future belongs to quantum dots. ....etc

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Seminar Report On
QUANTUM CRYPTOGRAPHY
Submitted by
SANTHIMOL A. K.
In the partial fulfillment of requirements in degree of
Master of Technology in Computer and Information Science
DEPARTMENT OF COMPUTER SCIENCE
COCHIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
KOCHI-682022
2008 Page 2

ACKNOWLEDGEMENT
I thank GOD almighty for guiding me throughout the seminars. I would like to
thank all those who have contributed to the completion of the seminar and helped me
with valuable suggestions for improvement.
I am extremely gratefu ....etc

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semi conductor quantum dots ....etc

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Introduction
In recent past reversible computing has emerged as a promising technology having applica tions in low power CMOS , nanotechnology , optical computing , DNA computing , quantum computing etc. To establish the relevance of reversible and quantum computing it seems appropriate to note that the VLSI industry is moving at high speed towards minia turization. With miniaturization it faces two issues: i) A considerable amount of energy gets dissipated in VLSI circuits and ii) the size of t ....etc

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A THEORETICAL APPROACH TO MOLECULAR LEVEL QUANTUM COMPUTING
ABSTRACT:
In this paper we are extending the boundaries of quantum registers which forms the basis for future quantum computing. The atomic excitation and relaxation paves the way for replacing the old conventional bits by qubits. Our paper elaborates the idea of implementing the molecular transistors without affecting molecular coherent property, which will be a pathway to the quantum computer castle, using nitrogen induced diamond as a temporary RAM. The experi ....etc

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Quantum dots known as nanocrystals is a semiconductor whose excitons are confined in all three spatial dimensions. As a result, they have properties that are between those of bulk semiconductors and those of discrete molecules which are crystals composed of periodic groups of II-VI, II-V, or IV-VI materials. Semiconductors are a cornerstone of the modern electronics industry and make possible applications such as the Light Emitting Diode and personal computer
see more on http://en.wikipediawiki/Quantum_dot
http://evidenttechquantum-dots- ....etc

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Quantum Wells, Quantum Wire, and Quantum Dots

I'd like to explore the material known as Wellstone. There are some interesting aspects to this material, and it is written about in Hacking Matter by Will McCarthy. It is not necessarily nanotechnology, so much as it is quantum level materials and bio-molecular control over nano sized or meso-sized particles.
We will return to the world of Nanotechnology and DNA computing shortly, for now - let's talk about Wellstone.

Definitions from the book:
Qua ....etc

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Luminescence from Surfactant-Free ZnO Quantum Dots
Prepared by Laser Ablation in Liquid
R. S. Ajimsha, G. Anoop,
*
Arun Aravind, and M. K. Jayaraj
z
Optoelectronic Devices Laboratory, Department of Physics, Cochin University of Science and Technology,
Kochi-682 022, Kerala, India
Highly transparent, luminescent and biocompatible ZnO quantum dots were prepared in water, methanol, and ethanol using
liquid-phase pulsed laser ablation technique without using any surfactant. Transmission electron microscopy analysis confirmed
the formation ....etc

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INTRODUCTION
The history of computer technology has involved a sequence of changes ZT\ one type of physical realization to another from gears to relays to valves to 3nsistors to integrated circuits and so on. Today's advanced lithographic *r-:hniques can squeeze fraction of micron wide logic gates and wires onto the s^face of silicon chips. Soon they will yield even smaller parts and inevitably each a point where logic gates are so small that they are made out of only a -^ndful of atoms; i.e. the size of the logic gates ....etc

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Abstract
In their article, Is the Brain a Quantum Computer,? Litt, Eliasmith, Kroon, Weinstein, and Thagard (2006) criticize the Penrose Hameroff Orch OR quantum computational model of consciousness, arguing instead for neurocomputation as an explanation for mental phenomena. Here I clarify and defend Orch OR, show how Orch OR and neurocomputation are compatible, and question whether neurocomputation alone can physiologically account for coherent gamma synchrony EEG, a candidate for the neural correlate of consciousness. Orch OR is based on ....etc

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