What is string theory?

... information comes out from a black hole. In this paper, we start from a qubit model and provide a quantum informational interpretation of entanglement ... Feb 27, 2015 ... A black hole is a spot in the universe where there is a large gravity pull. Now, here are 10 fun facts about black holes! A black hole is so dense that gravity just beneath its surface, the event horizon, is strong enough that nothing – not even light – can escape. Sep 23, 2010 ... There is a nice trick which can then be played: If the local energy density exceeds a certain limit, a black hole will form causing an event ... Jul 28, 2008 ... Which is why it came as a shock when Stephen Hawking said that black holes could destroy information. Hawking, of course, had famously shown ... The Democratic People's Republic of Korea (DPRK), known more familiarly as North Korea, is arguably the most mysterious country on Earth. For most of human history, black holes have been some of the most mysterious objects in outer space. Today, though, experts have made great strides in learning ... Supermassive Black Holes are the monsters of the universe, living at the centers of nearly every galaxy. They range in mass from 100,000 to billions of times ... Astronomers have observed evidence this way for dozens of black holes in our own galaxy. Scientists who study black holes focus on how other bodies are affected ... The field/string correspondence suggests quantum theory can describe black hole formation and evaporation, so information isn't lost.