quantum computing

Giant Rydberg Atom Molecules Discovered

harminka — Wed, 24 Jun 2009 13:22:56 -0500

A group of University of Oklahoma researchers led by Dr. James P. Shaffer, Homer L. Dodge Department of Physics and Astronomy, have discovered giant Rydberg molecules with a bond as large as a red blood cell. Determining how Rydberg molecules interact is important because Rydberg atoms are a key ingredient in atom based quantum computation schemes.

News bits about qubits

harminka — Fri, 24 Oct 2008 06:52:37 -0500

Another step towards quantum computing – the Holy Grail of data processing and storage – was achieved when an international team of scientists that included researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) were able to successfully store and retrieve information using the nucleus of an atom.

Hybrid memory solves key problem for quantum computing

harminka — Thu, 23 Oct 2008 10:32:28 -0500

An international team of scientists has performed the ultimate miniaturisation of computer memory: storing information inside the nucleus of an atom. This breakthrough is a key step in bringing to life a quantum computer - a device based on the fundamental theory of quantum mechanics which could crack problems unsolvable by current technology.

MIT probe could aid quantum computing

harminka — Wed, 03 Sep 2008 13:29:28 -0500

MIT researchers may have found a way to overcome a key barrier to the advent of super-fast quantum computers, which could be powerful tools for applications such as code breaking.

Researchers untangle quantum quirk

harminka — Thu, 12 Jun 2008 00:19:36 -0500

Quantum computing has been hailed as the next leap forward for computers, promising to catapult memory capacity and processing speeds well beyond current limits. Several challenging problems need to be cracked, however, before the dream can be fully realized.

Princeton scientists discover exotic quantum state of matter

harminka — Fri, 25 Apr 2008 09:35:59 -0500

A team of scientists from Princeton University has found that one of the most intriguing phenomena in condensed-matter physics -- known as the quantum Hall effect -- can occur in nature in a way that no one has ever before seen.

How quantum mechanical states break down

harminka — Fri, 21 Mar 2008 14:27:02 -0500

Researchers at the U. S. Department of Energy’s Ames Laboratory, the University of California, Santa Barbara, and Microsoft Station Q have made significant advancements in understanding a fundamental problem of quantum mechanics – one that is blocking efforts to develop practical quantum computers with processing speeds far superior to conventional computers.

Stanford researchers hear sound of quantum drums

harminka — Fri, 08 Feb 2008 13:22:32 -0600

Forty years ago, mathematician Mark Kac asked the theoretical question, "Can one hear the shape of a drum?"

Researchers' material may lead to advances in quantum computing

harminka — Mon, 08 Oct 2007 13:41:07 -0500

Scientists at Florida State University’s National High Magnetic Field Laboratory and the university’s Department of Chemistry and Biochemistry have introduced a new material that could be to computers of the future what silicon is to the computers of today.

Digital cable goes quantum

harminka — Wed, 26 Sep 2007 12:26:17 -0500

Physicists at the National Institute of Standards and Technology (NIST) have transferred information between two “artificial atoms” by way of electronic vibrations on a microfabricated aluminum cable, demonstrating a new component for potential ultra-powerful quantum computers of the future.

Qubits poised to reveal our secrets

harminka — Thu, 13 Sep 2007 07:31:16 -0500

It might seem like an esoteric achievement of interest to only a handful of computer scientists, but the advent of quantum computers that can run a routine called Shor’s algorithm could have profound consequences. It means the most dangerous threat posed by quantum computing - the ability to break the codes that protect our banking, business and e-commerce data - is now a step nearer reality.

Step toward spin-based quantum computing, spintronics

harminka — Thu, 13 Sep 2007 00:29:49 -0500

Scientists who dream of shrinking computers to the nanoscale look to atomic spin as one possible building block for both processor and memory, yet setting the spin of an atom, let alone measuring it, has been a challenge.