Latest Quantum Stories

2012-04-02 09:25:53

A research team led by University of Toronto Professor Hoi-Kwong Lo has found a new quantum encryption method to foil even the most sophisticated hackers. The discovery is outlined in the latest issue of Physical Review Letters. Quantum cryptography is, in principle, a foolproof way to prevent hacking. It ensures that any attempt by an eavesdropper to read encoded communication data will lead to disturbances that can be detected by the legitimate users. Therefore, quantum cryptography...

Looking At Quantum Gravity In A Mirror
2012-03-21 04:10:14

Einstein's theory of gravity and quantum physics are expected to merge at the Planck-scale of extremely high energies and on very short distances. At this scale, new phenomena could arise. However, the Planck-scale is so remote from current experimental capabilities that tests of quantum gravity are widely believed to be nearly impossible. Now an international collaboration between the groups of Caslav Brukner and Markus Aspelmeyer at the University of Vienna and Myungshik Kim at Imperial...

2011-06-21 18:29:33

In quantum physics there are two classes of fundamental particles. Photons, the quanta of light, are bosons, while the protons and neutrons that make up atomic nuclei belong to the fermions. Bosons and fermions differ in their behavior at a very basic level. This difference is expressed in their quantum statistics. In the 1980s a third species of fundamental particle was postulated, which was dubbed the anyon. In their quantum statistics, anyons interpolate between bosons and fermions. "They...

2011-05-02 20:51:42

A powerful quantum computer could be designed with an incredibly tiny memory A data memory can hardly be any smaller: researchers working with Gerhard Rempe at the Max Planck Institute of Quantum Optics in Garching have stored quantum information in a single atom. The researchers wrote the quantum state of single photons, i.e. particles of light, into a rubidium atom and read it out again after a certain storage time. This technique can be used in principle to design powerful quantum...

2011-03-18 08:30:00

IRVINE, Calif., March 18, 2011 /PRNewswire/ -- Quantum Fuel Systems Technologies Worldwide, Inc., (Nasdaq: QTWW) will hold a conference call to announce its Fiscal 2011 Third Quarter financial results. The call will be held on March 18, 2011 at 1:30 p.m. Pacific Time (4:30 p.m. Eastern Time). If you are interested in participating, please call the following number ten minutes prior to the starting time: 706-679-1155, Conference ID # 53323012. An operator will check your name and...

2011-03-17 12:02:59

A team of physicists in the United Kingdom has taken a giant step toward realizing efficient single-photon sources, which are expected to enable much-coveted completely secure optical communications, also known as "quantum cryptography." The team presents its findings in Applied Physics Letters, a journal published by the American Institute of Physics. Fluorescent "defect centers" in diamond act like atomic-scale light sources and are trapped in a transparent material that's large enough to...

2011-02-24 17:38:04

Like snowflakes or fingerprints, no two quantum dots are identical. But a new etching method for shaping and positioning these semiconductor nanocrystals might change that. What's more, tests at the National Institute of Standards and Technology (NIST) confirm that etched quantum dots emit single particles of light (photons), boosting prospects for powering new types of devices for quantum communications. The conventional way to build quantum dots"”at NIST and elsewhere"”is to...

2011-02-24 09:53:22

Austrian researchers realize a toolbox for open-system quantum simulation Experimental physicists have put a lot of effort in isolating sensitive measurements from the disruptive influences of the environment. In an international first, Austrian quantum physicists have realized a toolbox of elementary building blocks for an open-system quantum simulator, where a controlled coupling to an environment is used in a beneficial way. This offers novel prospects for studying the behavior of highly...

2010-12-10 08:00:00

IRVINE, Calif., Dec. 10, 2010 /PRNewswire-FirstCall/ -- Quantum Fuel Systems Technologies Worldwide, Inc., (Nasdaq: QTWW) will hold a conference call to announce its Fiscal 2011 Second Quarter financial results. The call will be held on December 10th at 1:30 p.m. Pacific Time (4:30 a.m. Eastern Time). If you are interested in participating, call the following number ten minutes prior to the starting time: (706) 643-3625; Conference ID # 31174945. An operator will check your name and...

2010-11-17 08:30:00

IRVINE, Calif., Nov. 17, 2010 /PRNewswire/ -- Quantum Fuel Systems Technologies Worldwide, Inc. (Nasdaq: QTWW) announced today that it has received a $9.4 million production release for the first production series of solar roofs for the Fisker Karma. Under the release, Quantum, with affiliate Asola of Germany, will initiate volume production of the solar roofs for the Fisker Karma in early 2011. This roof will be the largest continuous and most highly curved solar roof in a passenger car...

Latest Quantum Reference Libraries

Classical and Quantum Gravity
2012-05-12 20:18:16

Classical and Quantum Gravity is a peer-reviewed journal published by IOP Science. As of May 2012, the editor-in-chief is Clifford M Will (Washington University, St. Louis). The journal covers all aspects of gravitational physics and the theory of space-time. It scope includes: Classical general relativity, Applications of relativity, Experimental gravitation, Cosmology and the early universe, Quantum gravity, Supergravity, superstrings and supersymmetry, and Mathematical physics relevant...

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Word of the Day
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'