Technologists develop new ultra-fast computer chip that operates on light will enable simulations for drug research

A new photonic chip that works on light rather than electricity has been built by an international research team, paving the way for the production of ultra-fast quantum computers with capabilities far beyond today’s devices.

Future quantum computers will, for example, be able to pull important information out of the biggest databases almost instantaneously. As the amount of electronic data stored worldwide grows exponentially, the technology will make it easier for people to search with precision for what they want.

An early application will be to investigate and design complex molecules, such as new drugs and other materials, that cannot be simulated with ordinary computers. More general consumer applications should follow.

Jeremy O’Brien, director of the UK’s Centre for Quantum Photonics, who led the project, said many people in the field had believed a functional quantum computer would not be a reality for at least 25 years.

“However, we can say with real confidence that, using our new technique, a quantum computer could, within five years, be performing calculations that are outside the capabilities of conventional computers,” he told the British Science Festival, as he presented the research.

What particles are you talking about?

Many scientists are working with atoms or ions trapped in ultra-cold conditions. But the latest discovery by the Bristol-led team uses photons – light particles.

How does a quantum chip actually work?

There are several models. The Bristol version sends “entangled” photons down networks of circuits in a silicon chip. The particles perform a co-ordinated “quantum walk”, whose outcome represents the results of a calculation.

Of course, special software and input-output devices will have to be developed to make practical use of the device.

The breakthrough, published today in the journal Science, means data can be processed according to the counterintuitive rules of quantum physics that allow individual subatomic particles to be in several places at the same time.

This property will enable quantum computers to process information in quantities and at speeds far beyond conventional supercomputers. But formidable technical barriers must be ­overcome before quantum ­computing becomes practical.

The team, from Bristol university in the UK, Tohuku university in Japan, Weizmann Institute in Israel and Twente university in the Netherlands, say they have overcome an important barrier, by making a quantum chip that can work at ordinary temperatures and pressures, rather than the extreme conditions required by other approaches.

The immense promise of quantum computing has led governments and companies worldwide to invest hundreds of millions of dollars in the field.

Big spenders, including the US defence and intelligence agencies concerned with the national security issues, and governments – such as Canada, Australia and Singapore – see quantum electronics as the foundation for IT industries in the mid-21st century.

As earth cools, critic says EPA hiding inconvenient findings to protect its global warming narrative

"The Competitive Enterprise Institute is today making public an internal study on climate science which was suppressed by the Environmental Protection Agency. Internal EPA email messages, released by CEI earlier in the week, indicate that the report was kept under wraps and its author silenced because of pressure to support the Administration’s agenda of regulating carbon dioxide.

The report finds that EPA, by adopting the United Nations’ 2007 “Fourth Assessment” report, is relying on outdated research and is ignoring major new developments. Those developments include a continued decline in global temperatures, a new consensus that future hurricanes will not be more frequent or intense, and new findings that water vapor will moderate, rather than exacerbate, temperature.

New data also indicate that ocean cycles are probably the most important single factor in explaining temperature fluctuations, though solar cycles may play a role as well, and that reliable satellite data undercut the likelihood of endangerment from greenhouse gases. All of this demonstrates EPA should independently analyze the science, rather than just adopt the conclusions of outside organizations.

The released report is a draft version, prepared under EPA’s unusually short internal review schedule, and thus may contain inaccuracies which were corrected in the final report.

“While we hoped that EPA would release the final report, we’re tired of waiting for this agency to become transparent, even though its Administrator has been talking transparency since she took office. So we are releasing a draft version of the report ourselves, today,” said CEI General Counsel Sam Kazman."

http://cei.org/news-release/2009/06/25/cei-releases-
global-warming-study-censored-epa

Global warming enthusiasts ignore global cooling

"Natural forces as opposed to human activity are largely responsible for temperature fluctuations, according to a new study the Competitive Enterprise Institute (CEI) released today as Congress prepares to vote on global warming legislation.

Internal email messages show the Environmental Protection Agency (EPA) suppressed the report and silenced the author because the scientific evidence did not square with the Obama administration’s agenda of regulating carbon dioxide, CEI claims. The EPA has become overly reliant upon outdated information from the United Nations and has ignored major new scientific developments, the censored study concludes.

“While we hoped that the EPA would release the final report, we’re tired of waiting for this agency to become transparent, even though its administrator has been talking transparency, since she took office,” said CEI General Counsel Sam Kazman.
New scientific data highlighted in the report shows that ocean cycles and solar cycles are probably the most important factors behind temperature fluctuations. Moreover, satellite information now indicates there is little chance of endangerment from greenhouse gases, according to the report.

Some of the major developments overlooked by EPA official include a continued decline in global temperatures, an emerging consensus that hurricanes will not be more frequent or intense and new studies that demonstrate water vapor will have a moderating influence on temperature."

http://www.washingtonexaminer.com/opinion/blogs/
beltway-confidential/CEI-releases-global-warming
-study-censored-by-Obamas-EPA--49181632.html