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News >> Technology >>
Indian professor challenges black hole paradox
By siliconindia
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Monday, 12 March 2007, 17:30 IST
New Delhi: An Indian scientist in Bhubaneswar has set to prove the quantum theory wrong according to a national daily. Dr Arun K Pati of the Institute of Physics in Bhubaneswar and Professor Sam Braunstein of the University of York's Department of Computer Science have shown that at least the quantum information of matter absorbed by a black hole does survive, even though it must move to somewhere else as opposed to the belief by physicists about nothing surviving in black holes.
Their findings may prove Stephen Hawking wrong in his analysis of evaporation of blackholes or have significant ramifications for quantum theory. According to quantum theory, quantum information cannot simply disappear. But with the evaporation of black holes - as thermal radiation that does not contain any information - this was exactly what seemed to be happening.
The study was reported in February issue of the Physical Review Letters, stand as a milestone towards resolving a long-standing paradox relating to black holes. Prior to this both the scientists had come up with their 'no-deletion' principle that mentions that unlike classical information, quantum information cannot be deleted. Applying this principle to black holes, they have now postulated the 'no-hiding theorem'.
"Our work shows that if the original quantum information is missing from a subsystem, then this missing information must be available in the remainder of the subsystem. It cannot be stored in the correlation between the two subsystems," said Dr Pati.