Wormhole entanglement solves black hole paradox
2013 06 27

By Jacob Aron | NewScientist

Wormholes – tunnels through space-time that connect black holes – may be a consequence of the bizarre quantum property called entanglement. The redefinition would resolve a pressing paradox that you might be burned instead of crushed, should you fall into a black hole.

Knowing which hazard sign to erect outside a black hole isn’t exactly an everyday problem. For theoretical physicists, though, it reveals an inconsistency between quantum mechanics and general relativity. Solving this conundrum might lead to the sought-after quantum theory of gravity.

Relativity says if you fall into a black hole, you would die via "spaghettification" – a gradual stretching by ever-more intense gravitational forces. But last year, when Joseph Polchinski at the University of California in Santa Barbara and colleagues explored the quantum implications of black holes, they hit a problem. Black holes emit photons via something called Hawking radiation, and these are "entangled" with the interior of the black hole and also with each other. This breaks a quantum rule that particles can’t be entangled with two things at once.

To preserve quantum monogamy, Polchinski suggested last year that the black hole-photon entanglement breaks down. That causes a wall of energy at the black hole’s event horizon that wrecks relativity because anyone falling in would burn up rather turn to spaghetti. Welcome to the black hole firewall paradox.

Possible solutions abound but now two physics heavyweights, Juan Maldacena of the Institute for Advance Study in Princeton, and Leonard Susskind of Stanford University, California, have come up with the most audacious one yet: a new kind of wormhole that means the entanglement needn’t be broken in the first place.

First, the pair showed that these space-time tunnels, usually described by the maths of general relativity, also emerge from quantum theory, if two black holes are entangled. It’s as if the wormhole is the physical manifestation of entanglement.

The pair then extended this idea to a single black hole and its Hawking radiation, resulting in a new kind of wormhole (see diagram). Crucially, they suggest that this wormhole, which links a black hole and its Hawking radiation, may not be a problem for quantum monogamy in the way that normal entanglement is. As a result, the firewall needn’t appear, preserving relativity (arxiv.org/abs/1306.0533).

Patrick Hayden of McGill University in Montreal, Canada, finds the idea of wormholes from entangled black hole pairs convincing, but says more work is needed for the case of the black hole and a photon. Polchinski, meanwhile, is cautiously optimistic: "It certainly injects new ideas. But there is a lot that still needs to be filled in."


Read the full article at: newscientist.com

Related Articles
Super-Giant Black Hole Baffles Scientists
Countdown to a black hole show
Supermassive Black Hole Eats Star, Spews Bright Gamma-Ray Flares
Super-Civilizations Might Live off Black Holes
Satellite Photographs ’Black Hole’ on Earth
That’s a Big One! Black hole is most massive known
We may exist inside a black hole, scientist says
BBC Horizon 2005: The Hawking Paradox (Big Bang)

Latest News from our Front Page

Secret Project Created Weaponized Ebola In South Africa In The 1980s
2014 10 21
“No records are available to confirm that the biological agents were destroyed.” Operating out of South Africa during the Apartheid era in the early 1980’s, Dr. Wouter Basson launched a secret bioweapons project called Project Coast. The goal of the project was to develop biological and chemical agents that would either kill or sterilize the black population and assassinate political enemies. ...
Controlling the American Mind: The Viral Liturgical Psychodrama
2014 10 20
In order to successfully navigate the raging sea of media shit storm, one must be ever-mindful of the overall designs of mass media without getting lost in endless details and rabbit trails that will be forgotten in a month. Remember Bowe Bergdahl? Remember how media was furiously researching his back story to make details match-up, all of which ended up ...
People are merging with machines
2014 10 20
Ian Burkhart concentrated hard. A thick cable protruded from the crown of his shaven head. A sleeve sprouting wires enveloped his right arm. The 23 - year-old had been paralysed from the neck down since a diving accident four years ago. But, in June this year, in a crowded room in the Wexner Medical Centre at Ohio State University, Burkhart’s ...
Illegal Aliens Cleared For U.S. Military Service
2014 10 18
The Pentagon announced a new policy allowing illegal immigrants the opportunity to enlist in the armed forces, Thursday. USA Today reports that the new recruitment policies will focus on people with "high-demand skills" like foreign language acumen and health care training: "For the first time, the program — known as Military Accessions in the National Interest, or MAVNI — will ...
Bronze Age Sundial-Moondial Discovered in Russia
2014 10 16
A strange slab of rock discovered in Russia more than 20 years ago appears to be a combination sundial and moondial from the Bronze Age, a new study finds. The slab is marked with round divots arranged in a circle, and an astronomical analysis suggests that these markings coincide with heavenly events, including sunrises and moonrises. The sundial might be "evidence of ...
More News »