Feeds

Loopy quantums reveal successive universes

Big Bang was Big Bounce

Top three mobile application threats

So it turns out that the universe didn't begin with a big bang, after all. No. It was a big boing, the result of a previous universe contracting before bouncing back out to become ours. This is the latest news from the mutantly clever quantum cosmologists at Penn State university.

Credit: Martin Bojawald, Penn State

Spreading through a bounce: A state that initially has small

fluctuations (left) bounces and develops larger fluctuations (right).

Time proceeds along the horizontal axis, with the volume plotted

vertically. Credit: Martin Bojawald, Penn State

The boffins have have used a piece of mathematical trickery called Quantum Loop Theory to go where no one has gone before: into the singularity that classical cosmology says preceded the Big Bang. What they found was that the singularity actually wasn't.

Using quantum loop theory, they traced time backwards to its beginning. Where Einstein's theory of general relativity predicts a singularity, quantum loop theory does not. The universe, they say, did not spring forth from a place where infinite density and energy inhabited zero volume.

"Einstein's Theory of General Relativity does not include the quantum physics that you must have in order to describe the extremely high energies that dominated our universe during its very early evolution," explains Martin Bojowald, lead author and assistant professor of physics at Penn State."But we now have Loop Quantum Gravity, a theory that does include the necessary quantum physics."

He explains that the theory's equations continue to produce valid mathematical results past the point of the classical Big Bang, giving scientists a window into the time before the Big Bounce, and into the previous universe.

In order to explore the physics of the other universe, Bojowald developed a "more precise model" within quantum loop gravity. This revealed that some parameters in the equation are complimentary, making it impossible to learn too much about the earlier universe using this model.

His revised calculations also showed that some parameters that exist in the previous universe do not exist in ours, meaning this previous universe would not have been identical to our own.

He said: "The eternal recurrence of absolutely identical universes would seem to be prevented by the apparent existence of an intrinsic cosmic forgetfulness". ®

High performance access to file storage

More from The Register

next story
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
LOHAN and the amazing technicolor spaceplane
Our Vulture 2 livery is wrapped, and it's les noix du mutt
KILLER ROBOTS, DNA TAMPERING and PEEPING CYBORGS: the future looks bright!
Americans optimistic about technology despite being afraid of EVERYTHING
R.I.P. LADEE: Probe smashes into lunar surface at 3,600mph
Swan dive signs off successful science mission
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
Liftoff! SpaceX Falcon 9 lifts Dragon on third resupply mission to ISS
SpaceX snaps smartly into one-second launch window
Elon Musk's LEAKY THRUSTER gas stalls Space Station supply run
Helium seeps from Falcon 9 first stage, delays new legs for NASA robonaut
prev story

Whitepapers

SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.