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The fight for the best quantum bit (qubit)
June 25, 2008Our results give us, for the first time, the possibility to understand the interaction between just two electrons placed next to each other in a carbon nanotube. A groundbreaking discovery, which is fundamental for the creation of a quantum mechanical bit, a so-called quantum bit - the cornerstone of a quantum computer, explains Henrik Jørgensen, who is one of the many researchers competing on an international level to be the first to make a quantum bit in a carbon nanotube.
The ability to produce a quantum computer is still some years ahead in the future, the implementation will, however, mean a revolution within the computer industry. This is due to the quantum mechanical computation method, which quickly will be able to solve certain complicated calculations that on an ordinary computer would take more than the lifetime of the Universe to calculate.
Who will be the first?
Over the past years there has been a tremendously increasing interest in developing a quantum computer within the international world of researchers. The production of a quantum computer is enormously challenging and demands development of new theories and new technologies by research-groups all over the world. Henrik Jørgensen's results have been developed in close collaboration with the Hitachi Cambridge Laboratory in England.
Adviser and Vice-Chairman at the Nano-Science Center, Professor Poul Erik Lindelof, says - We have been studying the quantum mechanical properties of carbon nanotubes for ten years, and today we are one of the leading laboratories within this field of research. I believe Henrik Jørgensen's experimental work can prove to be just the right way forward.
Kasper Grove Rasmussen is joint author of the article. He says - We use carbon nanotubes due to their unique electronic and material properties and not least due to the absence of disturbing magnetism from the atom nuclei which is found in certain competing materials.
At present it is not possible to say which material will be the most suitable for the quantum computer, or who will be the first to realize a quantum bit in a carbon nanotube, but the researchers at the Nano-Science Center are a big step closer to the solution.
University of Copenhagen
Over the past years there has been a tremendously increasing interest in developing a quantum computer within the international world of researchers. The production of a quantum computer is enormously challenging and demands development of new theories and new technologies by research-groups all over the world. Henrik Jørgensen's results have been developed in close collaboration with the Hitachi Cambridge Laboratory in England.
Adviser and Vice-Chairman at the Nano-Science Center, Professor Poul Erik Lindelof, says - We have been studying the quantum mechanical properties of carbon nanotubes for ten years, and today we are one of the leading laboratories within this field of research. I believe Henrik Jørgensen's experimental work can prove to be just the right way forward.
Kasper Grove Rasmussen is joint author of the article. He says - We use carbon nanotubes due to their unique electronic and material properties and not least due to the absence of disturbing magnetism from the atom nuclei which is found in certain competing materials.
At present it is not possible to say which material will be the most suitable for the quantum computer, or who will be the first to realize a quantum bit in a carbon nanotube, but the researchers at the Nano-Science Center are a big step closer to the solution.
University of Copenhagen
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Quantum Computer Current Events and Quantum Computer News RSSScientists create first electronic quantum processor
A team led by Yale University researchers has created the first rudimentary solid-state quantum processor, taking another step toward the ultimate dream of building a quantum computer.
Manipulating light on a chip for quantum technologies
A team of physicists and engineers at Bristol University has demonstrated exquisite control of single particles of light - photons - on a silicon chip to make a major advance towards long-sought-after quantum technologies, including super-powerful quantum computers and ultra-precise measurements.
NIST physicists demonstrate quantum entanglement in mechanical system
Physicists at the National Institute of Standards and Technology (NIST) have demonstrated entanglement-a phenomenon peculiar to the atomic-scale quantum world-in a mechanical system similar to those in the macroscopic everyday world.
UCSB researchers describe breakthrough in the quantum control of light
Researchers at UC Santa Barbara have recently demonstrated a breakthrough in the quantum control of photons, the energy quanta of light.
Quantum ghosts are helpful
The idea that far distant particles can somehow 'talk' to each other worried Einstein so much that he called it 'spooky action at a distance'.
X marks the spot: Ions coldly go through NIST trap junction
Physicists at the National Institute of Standards and Technology (NIST) have demonstrated a new ion trap that enables ions to go through an intersection while keeping their cool.
Quantum computers will require complex software to manage errors
Highlighting another challenge to the development of quantum computers, theorists at the National Institute of Standards and Technology (NIST) have shown* that a type of software operation, proposed as a solution to fundamental problems with the computers' hardware, will not function as some designers had hoped.
'Science:' Novel quantum effect directly observed and explained
An international research team has succeeded in gaining an in-depth insight into an unusual phenomenon, as reported in the current edition of the high-impact journal "Science".
NIST/Maryland Researchers Demonstrate 'Quantum Data Buffering' Scheme
Pushing the envelope of Albert Einstein's "spooky action at a distance," known as entanglement, researchers at the Joint Quantum Institute (JQI) of the Commerce Department's National Institute of Standards and Technology (NIST) and the University of Maryland have demonstrated a "quantum buffer," a technique that could be used to control the data flow inside a quantum computer.
Dream of quantum computing closer to reality as mathematicians chase key breakthrough
The ability to exploit the extraordinary properties of quantum mechanics in novel applications, such as a new generation of super-fast computers, has come closer following recent progress with some of the remaining underlying mathematical problems.
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An Introduction to Quantum Computing by Phillip Kaye (Author), Raymond Laflamme (Author), Michele Mosca (Author) This concise, accessible text provides a thorough introduction to quantum computing - an exciting emergent field at the interface of the computer, engineering, mathematical and physical sciences. Aimed at advanced undergraduate and beginning graduate students in these disciplines, the text is technically detailed and is clearly illustrated throughout with diagrams and exercises. Some prior knowledge of linear algebra is assumed, including vector spaces and inner products. However, prior familiarity with topics such as tensor products and spectral decomposition is not required, as the necessary material is reviewed in the text. |
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A Shortcut Through Time: The Path to the Quantum Computer by George Johnson (Author) In this remarkably illustrative and thoroughly accessible look at one of the most intriguing frontiers in science and computers, award-winning New York Times writer George Johnson reveals the fascinating world of quantum computing—the holy grail of super computers where the computing power of single atoms is harnassed to create machines capable of almost unimaginable calculations in the blink of an eye. As computer chips continue to shrink in size, scientists anticipate the end of the road: A computer in which each switch is comprised of a single atom. Such a device would operate under a different set of physical laws: The laws of quantum mechanics. Johnson gently leads the curious outsider through the surprisingly simple ideas needed to understand this dream, discussing the... |
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Quantum Computing for Computer Scientists by Noson S. Yanofsky (Author), Mirco A. Mannucci (Author) The multidisciplinary field of quantum computing strives to exploit some of the uncanny aspects of quantum mechanics to expand our computational horizons. Quantum Computing for Computer Scientists takes readers on a tour of this fascinating area of cutting-edge research. Written in an accessible yet rigorous fashion, this book employs ideas and techniques familiar to every student of computer science. The reader is not expected to have any advanced mathematics or physics background. After presenting the necessary prerequisites, the material is organized to look at different aspects of quantum computing from the specific standpoint of computer science. There are chapters on computer architecture, algorithms, programming languages, theoretical computer science, cryptography, information... |
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A Shortcut Through Time: The Path to the Quantum Computer by Vintage In this remarkably illustrative and thoroughly accessible look at one of the most intriguing frontiers in science and computers, award-winning New York Times writer George Johnson reveals the fascinating world of quantum computing—the holy grail of super computers where the computing power of single atoms is harnassed to create machines capable of almost unimaginable calculations in the blink of an eye. As computer chips continue to shrink in size, scientists anticipate the end of the road: A computer in which each switch is comprised of a single atom. Such a device would operate under a different set of physical laws: The laws of quantum mechanics. Johnson gently leads the curious outsider through the surprisingly simple ideas needed to understand this dream, discussing the... |
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Quantum Computer Science: An Introduction by N. David Mermin (Author) In the 1990's it was realized that quantum physics has some spectacular applications in computer science. This book is a concise introduction to quantum computation, developing the basic elements of this new branch of computational theory without assuming any background in physics. It begins with an introduction to the quantum theory from a computer-science perspective. It illustrates the quantum-computational approach with several elementary examples of quantum speed-up, before moving to the major applications: Shor's factoring algorithm, Grover's search algorithm, and quantum error correction. The book is intended primarily for computer scientists who know nothing about quantum theory, but will also be of interest to physicists who want to learn the theory of quantum computation, and... |
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James Bond 007: Quantum of Solace by Activision Can you be the next James Bond? Coldly efficient dangerous the new Bond is the ultimate weapon in today's ruthless world of international espionage. Blending first person shooting and third person action, Quantum of Solace puts you in control of Bond's greatest weapon his mind. You must think like Bond and intelligently use the map and situation to your advantage. Confront enemies in a variety of ways: take them head on, fire from behind cover or sneak up silently and eliminate them with a variety of special takedown moves. Based on Quantum of Solace and Casino Royale, Quantum of Solace the Game puts you in the dangerous world of international espionage and intrigue. |
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Quantum Computation and Quantum Information by Michael A. Nielsen (Author), Isaac L. Chuang (Author) In this first comprehensive introduction to the main ideas and techniques of quantum computation and information, Michael Nielsen and Isaac Chuang ask the question: What are the ultimate physical limits to computation and communication? They detail such remarkable effects as fast quantum algorithms, quantum teleportation, quantum cryptography and quantum error correction. A wealth of accompanying figures and exercises illustrate and develop the material in more depth. They describe what a quantum computer is, how it can be used to solve problems faster than familiar "classical" computers, and the real-world implementation of quantum computers. Their book concludes with an explanation of how quantum states can be used to perform remarkable feats of communication, and of how it is possible... |
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Quantum 1pk VS160 80/160GB DLT-V4 160/320GB Tape Catridge (MR-V1MQN-01 ) by Quantum Eide FOR DLT VS160 DRIVES |
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LeapFrog Quantum Pad Learning System by LeapFrog This educational product helps children in 3rd to 5th grade learn fundamental skills and explore topics that interest them the most. Each book (sold separately) is packed with engaging activities, games, stories and facts that fascinate kids. The Quantum Pad Learning System features engaging audio, games, activities and quizzes that make learning fun. It comes with an interactive sampler book of the Quantum Pad library. Other Quantum Pad Interactive Books and Cartridges sold separately. As an added bonus, this system also works with all LeapPad books and cartridges (sold separately). Requires 4 "AA" alkaline batteries (not included). |
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Quantum of Solace David Arnold (Composer) Quantum of Solace continues the high octane adventures of Daniel Craig as James Bond. Directed by Marc Fisher, this 22nd installation in the 007 franchise hits theaters on October 31st, 2008 in Europe and November 14th in the US. This film features music by composer David Arnold and the new single 'Another Way To Die' by Jack White (White Stripes) and Alicia Keys, a first ever duet for a James Bond flick. The Quantum of Solace soundtrack will include the movie score and this new single. David Arnold is a Grammy-winning English film composer, best known for scoring five James Bond films including the score for Casino Royale and the blockbuster Independence Day. |
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