News tagged with loop quantum gravity
Physicists propose test for loop quantum gravity
(PhysOrg.com) -- As a quantum theory of gravity, loop quantum gravity could potentially solve one of the biggest problems in physics: reconciling general relativity and quantum mechanics. But like all tentative ...
Jan 03, 2012 |
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Search results for loop quantum gravity
Secrets of the 'Levitating' Slinky: Viral web videos trigger physicists to explore a striking phenomenon
While holiday shoppers search frantically for the Moshi Monsters, LeapPad Explorers, or Lalaloopsy Silly Hair dolls atop their children's wish lists, many physicists remain engrossed in the properties of a ...
Dec 22, 2011 |
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Could the Big Bang have been a quick conversion of antimatter into matter?
(PhysOrg.com) -- Suppose at some point the universe ceases to expand, and instead begins collapsing in on itself (as in the “Big Crunch” scenario), and eventually becomes a supermassive black hole. ...
Jul 19, 2011 |
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Integral challenges physics beyond Einstein
(PhysOrg.com) -- ESA's Integral gamma-ray observatory has provided results that will dramatically affect the search for physics beyond Einstein. It has shown that any underlying quantum 'graininess' of space ...
Jun 30, 2011 |
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Vanquishing infinity: Old methods lead to a new approach to finding a quantum theory of gravity
Quantum mechanics and Einstein's theory of general relativity are both extremely accurate theories of how the universe works, but all attempts to combine the two into a unified theory have ended in failure. ...
Aug 17, 2009 |
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The day the universe froze: New dark energy model includes cosmological phase transition
Imagine a time when the entire universe froze. According to a new model for dark energy, that is essentially what happened about 11.5 billion years ago, when the universe was a quarter of the size it is today.
May 08, 2009 |
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Before the Big Bang: A Twin Universe?
Until very recently, asking what happened at or before the Big Bang was considered by physicists to be a religious question. General relativity theory just doesn’t go there – at T=0, it spews out zeros, infinities, ...
Apr 09, 2008 |
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What Happened Before the Big Bang?
New discoveries about another universe whose collapse appears to have given birth to the one we live in today will be announced in the early on-line edition of the journal Nature Physics on 1 July 2007 and wi ...
Jul 01, 2007 |
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A test for new physics, including string theory
Detractors of string theory have been deriding it for years, claiming that there is no way to test it. However, with a paper published in Physical Review Letters titled “Falsifying Models of New Physics via WW Scattering”, that c ...
Feb 05, 2007 |
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Probing Question: What happened before the Big Bang?
The question of what happened before the Big Bang long has frustrated cosmologists, both amateur and professional.
Aug 03, 2006 |
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Researchers Look Beyond the Birth of the Universe
According to Einstein’s general theory of relativity, the Big Bang represents The Beginning, the grand event at which not only matter but space-time itself was born. While classical theories offer no clues ...
May 12, 2006 |
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List of search results for loop quantum gravity
