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Squeezed Laser Will Bring Gravitational Waves To The Light Of Day
2011-09-12 06:34:03

  Measuring at the limits of the laws of nature — this is the challenge which researchers repeatedly take up in their search for gravitational waves. The interferometers they use here measure with such sensitivity that a particular quantum phenomenon of light — shot noise — limits the measuring accuracy. With the "squeezed light" method scientists from the Max Planck Society and the Leibniz University Hannover likewise use quantum physics in a countermove in order to...

2011-05-27 13:06:07

The final piece of Einstein's jigsaw Direct evidence of the existence of gravitational waves is something that has long eluded researchers, however new research has suggested that adding just one of the proposed detectors in Japan, Australia and India will drastically increase the expected rate of detection. In a study published today, Friday, 27 May, in IOP Publishing's journal Classical and Quantum Gravity, Professor Bernard Schutz, of the Albert Einstein Institute, Germany, demonstrated...

2009-08-20 14:40:00

An international group of scientists says it has defined the energy density of gravitational waves created immediately after the birth of the universe. Gravitational waves that still ripple across the universe are believed to result from the Big Bang that created the universe more than 13 billion years ago. Albert Einstein predicted the existence of the waves in 1916, and the first evidence of their existence was reported in 1979. Scientists from the Laser Interferometer Gravitational-Wave...

2009-07-16 08:40:54

An astrophysics experiment in America has demonstrated how fundamental research in one subject area can have a profound effect on work in another as the instruments used for the Laser Interferometer Gravitational-Wave Observatory (LIGO) pave the way for quantum experiments on a macroscopic scale.The work is reported in a research article published today, Thursday, 16 July, in New Journal of Physics (co-owned by the Institute of Physics and German Physical Society). It can be found at...

2009-02-03 15:54:19

Cardiff University researchers who are part of a British-German team searching the depths of space to study gravitational waves, may have stumbled on 1 of the most important discoveries in physics according to an American physicistCardiff University researchers who are part of a British-German team searching the depths of space to study gravitational waves, may have stumbled on one of the most important discoveries in physics according to an American physicist.Craig Hogan, a physicist at...

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2008-12-19 16:15:00

In a move that would have any astrophysicist scratching his head, the U.S. Defense Intelligence Agency (DIA) commissioned a report to assess whether gravitational waves could threaten national security. The JASON Defense Advisory Group was also asked to investigate other potential applications for high-frequency gravitational waves, such as imaging the Earth's core or uses in telecommunications. Gravitational waves are wrinkles in space-time caused by the movement of objects with...

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2008-04-17 07:00:00

The U.S. Laser Interferometer Gravitational-wave Observatories (LIGO) is getting a $205 million upgrade by the National Science Foundation (NSF). Dubbed the "Advanced LIGO Project", the upgrade will enable the new field of gravitational wave astronomy. The National Science Board approved the seven-year project in its March 27 meeting, and the  NSF will provide an initial $32.75 million in funding this year via the Major Research Equipment and Facilities Construction (MREFC) budget...


Word of the Day
maffling
  • To stammer.
  • Present participle of maffle, to stammer.
  • A simpleton.
The word 'maffle' may come from a Dutch word meaning 'to move the jaws' or a French word meaning 'having large cheeks'.