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Latest Quantum computer Stories

2013-03-22 09:40:39

Carbon nanotubes can be used as quantum bits for quantum computers. A study by physicists at the Technische Universitaet Muenchen (TUM) has shown how nanotubes can store information in the form of vibrations. Up to now, researchers have experimented primarily with electrically charged particles. Because nanomechanical devices are not charged, they are much less sensitive to electrical interference. Using quantum mechanical phenomena, computers could be much more powerful than their...

Major Step Towards Quantum 'Internet' Signaled By Laser-like Photons
2013-03-19 13:30:09

University of Cambridge The realization of quantum networks is one of the major challenges of modern physics. Now, new research shows how high-quality photons can be generated from 'solid-state' chips, bringing us closer to the quantum 'internet'. The number of transistors on a microprocessor continues to double every two years, amazingly holding firm to a prediction by Intel co-founder Gordon Moore almost 50 years ago. If this is to continue, conceptual and technical advances...

2013-03-11 10:28:15

New tech­nolo­gies that exploit quan­tum behav­ior for com­put­ing and other appli­ca­tions are closer than ever to being real­ized due to recent advances, accord­ing to a review arti­cle pub­lished this week in the jour­nal Sci­ence. These advances could enable the cre­ation of immensely pow­er­ful com­put­ers as well as other appli­ca­tions, such as highly sen­si­tive detec­tors capa­ble...

2013-03-08 12:16:22

Technology will continue to be a leader in the development of quantum computing architectures Recently Science Magazine invited JQI fellow Chris Monroe and Duke Professor Jungsang Kim to speculate on ion trap technology as a scalable option for quantum information processing. The article is highlighted on the cover of this week's issue, which is dedicated to quantum information. The cover portrays a photograph of a surface trap that was fabricated by Sandia National Labs and used to trap...

Discovery Made In The Quantum Realm
2013-03-04 13:10:40

University of California - Santa Barbara Physicists at UC Santa Barbara are manipulating light on superconducting chips, and forging new pathways to building the quantum devices of the future —— including super-fast and powerful quantum computers. The science behind tomorrow's quantum computing and communications devices is being conducted today at UCSB in what some physicists consider to be one of the world's top laboratories in the study of quantum physics. A team in the...

2013-02-25 13:45:45

The team implemented the 'phase estimation algorithm' – a central quantum algorithm which achieves an exponential speedup over all classical algorithms. It lies at the heart of quantum computing and is a key sub-routine of many other important quantum algorithms, such as Shor's factoring algorithm and quantum simulations. Dr Xiao-Qi Zhou, who led the project, said: "Before our experiment, there had been several demonstrations of quantum algorithms, however, none of them implemented...

Playing Quantum Tricks By Reversing Measurements
2013-02-15 14:02:48

University of Innsbruck A team of physicists at the University of Innsbruck, Austria, performed an experiment that seems to contradict the foundations of quantum theory — at first glance. The team led by Rainer Blatt reversed a quantum measurement in a prototype quantum information processor. The experiment is enabled by a technique that has been developed for quantum error correction in a future quantum computer. Measurements on quantum systems have puzzled generations of...

2013-02-08 11:48:41

A proof-of-concept device that could pave the way for on-chip optical quantum networks has been created by a group of researchers from the US. Presenting the device today, 8 February, in the Institute of Physics and German Physical Society's New Journal of Physics, it has been described as the "building block of future quantum networks." In an optical quantum network, information is carried between points by photons — the basic unit of light. There is a huge potential for this...

Transporting At The Speed Of Light Into The Quantum Internet
2013-02-04 10:01:14

AlphaGalileo Not only do optical fibers transmit information every day around the world at the speed of light, but they can also be harnessed for the transport of quantum information. In the current issue of Nature Photonics, a research team of Innsbruck physicists led by Rainer Blatt and Tracy Northup report how they have directly transferred the quantum information stored in an atom onto a particle of light. Such information could then be sent over optical fiber to a distant atom....


Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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