News tagged with quantum computing
Related topics: quantum information , quantum mechanics , physical review letters , electrons , quantum state
Quantum non-demolition measurement allows physicists to count photons without destroying them
(PhysOrg.com) -- In a way, the quantum world seems to know when it's being watched. When physicists make measurements on photons and other quantum-scale particles, the measurements always disturb the system ...
Jul 09, 2010 |
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Explained: Phonons
For the engineers who design cell phones, solar panels and computer chips, it’s increasingly important to be able to control the way heat moves through the crystalline materials — such as silicon — that these ...
Jul 08, 2010 |
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Novel ion trap with optical fiber could link atoms and light in quantum networks
Physicists at the National Institute of Standards and Technology have demonstrated an ion trap with a built-in optical fiber that collects light emitted by single ions (electrically charged atoms), allowing ...
Jul 08, 2010 |
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A pinch of light: Laser 'tweezers' for medicine, communications and harvesting energy
Star Trek fans will remember "tractor beams," lasers that allowed the Starship Enterprise to trap and move objects. Tel Aviv University is now turning this science fiction into science fact -- on a nano scale.
Jul 06, 2010 |
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Print your own lasers, lights and TV screens
Imagine printing your own room lighting, lasers, or solar cells from inks you buy at the local newsagent. Jacek Jasieniak and his colleagues at CSIRO, the University of Melbourne and the University of Padua ...
Jul 01, 2010 |
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Scientists Advance Quantum Computing & Energy Conversion Tech
(PhysOrg.com) -- Using a unique hybrid nanostructure, University of Maryland researchers have shown a new type of light-matter interaction and also demonstrated the first full quantum control of qubit spin ...
Jun 30, 2010 |
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Diamonds and the holy grail of quantum computing
Since Richard Feynman's first envisioned the quantum computer in 1982, there have been many studies of potential candidates -- computers that use quantum bits, or qubits, capable of holding an more than one value at a time ...
Jun 29, 2010 |
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World first for quantum memory storage
(PhysOrg.com) -- An Australian National University-led team has developed the most efficient quantum memory for light in the world, taking us closer to a future of super-fast computers and communication secured ...
Jun 24, 2010 |
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'Quantum computer' a stage closer with silicon breakthrough
The remarkable ability of an electron to exist in two places at once has been controlled in the most common electronic material - silicon - for the first time. The research findings - published in Nature by a U ...
Jun 23, 2010 |
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A New Type of Molecule
(PhysOrg.com) -- A Rydberg atom is one with an electron that spends most of its time far from the nucleus. Rydberg atoms, which are normally artificially produced, can have dimensions thousands of times larger ...
Jun 21, 2010 |
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Physicists Propose New Method for Quantum Computing
(PhysOrg.com) -- The new system, which can compute faster and more efficiently than previous quantum computers, may bring the technology closer to reality.
Jun 15, 2010 |
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German physicists develop a quantum interface between light and atoms
German hysicists at the Johannes Gutenberg University Mainz have developed a quantum interface which connects light particles and atoms.
May 27, 2010 |
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Researchers design and test microfabricated planar ion traps
Despite a steady improvement in the speed of conventional computers during the last few decades, certain types of problems remain computationally difficult to solve. Quantum computers hold the promise of offering ...
May 26, 2010 |
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Mapping Tumor Heterogeneity With Quantum Dots
(PhysOrg.com) -- One important discovery made about cancer over the past decade is that as a tumor develops, the molecular identity of its cells begins to diverge. As a result, any given tumor is likely to contain groups ...
Nanotechnology / Bio & Medicine
May 25, 2010 |
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Quantum leap: World's smallest transistor built with just 7 atoms
(PhysOrg.com) -- Scientists have literally taken a leap into a new era of computing power by making the world's smallest precision-built transistor - a "quantum dot" of just seven atoms in a single silicon ...
May 24, 2010 |
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