Quantcast

Latest Quantum information Stories

2011-01-21 08:35:02

Tokyo, Jan 21, 2011 - (JCN Newswire) - Professor Kohei Itoh, who is developing quantum computers based on silicon semiconductors at Keio University's Faculty of Science and Technology, together with Dr. John Morton at Oxford University and others, has successfully generated and detected quantum entanglement between electron spin and nuclear spin in phosphorus impurities added to silicon. This is the world's first successful generation and detection of entanglement, which is essential for...

771e6e8485d2129a9e5e1541b2b8113d1
2011-01-13 08:18:34

Discovery moves quantum networks closer to reality Researchers at the University of Calgary, in Canada, collaborating with the University of Paderborn, in Germany, are working on a way to make quantum networks a reality and have published their findings in the journal Nature. A similar finding by a group at the University of Geneva, in Switzerland is reported in the same issue. "We have demonstrated, for the first time, that a crystal can store information encoded into entangled quantum...

2010-11-30 16:53:15

Milestone reached on the path to integrated quantum technology Quantum information processing is arguably one of the most fascinating facets of modern quantum physics. A quantum computer operates with quantum bits (qubits) as units of information. Obeying the laws of quantum mechanics, such a computer would be capable of addressing several of the most difficult computational tasks unsolvable with present technology. In the past few decades, scientists learned to perform room-sized experiments...

2010-11-01 21:02:14

Braided anyons could lead to more robust quantum computing When confined to a 2-dimensional sheet, some exotic particle-like structures known as anyons appear to entwine in ways that could lead to robust quantum computing schemes, according to research appearing in the November 1 issue of the journal Physical Review B. The physicists at Bell Laboratories who performed the research are hopeful the anyons can be induced to follow paths that twist into braids that would be much more resistant to...

351b16ff356c391cdbc880604c10c1121
2010-09-17 12:58:46

An international research group led by scientists from the University of Bristol has developed a new approach to quantum computing that could soon be used to perform complex calculations that cannot be done by today's computers. Scientists from Bristol's Centre for Quantum Photonics have developed a silicon chip that could be used to perform complex calculations and simulations using quantum particles in the near future. The researchers believe that their device represents a new route to a...

c7e6ab521ca9158a8f646fed5ee593371
2010-06-07 13:56:45

Any physical system - be it an electron, a molecule of water, a virus, a human being, a whole planet "“ is characterized at each moment in time distinctively and specifically in a specific place by particular characteristics. This is what we call the "state of the system", but when one tries to describe said "state" precisely according to our current knowledge of the laws governing the universe, it is necessary to appeal to abstract formulations since the laws of quantum physics, the...

9b31a9d68d45cb7dba6bfe4c192feb3d1
2010-04-28 09:40:18

Scientists at the National Institute of Standards and Technology (NIST) have developed the first "dimmer switch" for a superconducting circuit linking a quantum bit (qubit) and a quantum bus"”promising technologies for storing and transporting information in future quantum computers. The NIST switch is a new type of control device that can "tune" interactions between these components and potentially could speed up the development of a practical quantum computer. Quantum computers, if...

2010-01-19 17:40:29

A roundabout method of reading data can improve quantum memory Researchers who hope to create quantum computers are currently investigating various methods to store data. Nitrogen atoms embedded in diamond show promise for encoding quantum bits (qubits), but the process of reading the information results in an extremely weak signal. Now physicists have demonstrated a roundabout approach for generating a significantly stronger signal from these sorts of qubits. Their experiment is reported in...

2010-01-07 13:38:47

Quantum physicists simulate Dirac equation, 1 of the cornerstones in physics Researchers of the Institute for Quantum Optics and Quantum Information (IQOQI) in Innsbruck, Austria, used a calcium ion to simulate a relativistic quantum particle, demonstrating a phenomenon that has not been directly observable so far: the Zitterbewegung. They have published their findings in the current issue of the journal Nature. In the 1920s quantum mechanics was already established and in 1928 the British...

2009-12-21 15:27:44

Researchers at the California Institute of Technology (Caltech) have proposed a new paradigm that should allow scientists to observe quantum behavior in small mechanical systems. Their ideas, described in the latest online issue of the Proceedings of the National Academy of Sciences, offer a new means of addressing one of the most fascinating issues in quantum mechanics: the nature of quantum superposition and entanglement in progressively larger and more complex systems. A quantum...


Latest Quantum information Reference Libraries

Open Systems & Information Dynamics
2012-05-17 15:20:56

Open Systems & Information Dynamics (OSID) is journal published by World Scientific. The aim of the Journal is to promote interdisciplinary research in mathematics, physics, engineering and life sciences centered around the issues of broadly understood information processing, storage and transmission, in both quantum and classical settings. Our special interest lies in the information-theoretic approach to phenomena dealing with dynamics and thermodynamics, control, communication,...

More Articles (1 articles) »
Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
Related