GPBARC RESEARCH SCAPES

G.P. BIRLA OBSERVATORY AND ASTRONOMICAL RESEARCH CENTRE

Phone: 040-23235081; Email:birlasc@gmail.com

ADARSH NAGAR, HYDERABAD – 500 063 (INDIA)

RESEARCH SCAPES

  1. Special Relativity tells us that we are trapped in what is called the light cone. Less technically this means that it is not possible to go beyond the speed of light but in recent research, to be published shortly in International Journal of Modern Physics A, Sidharth and Das argue that there are Quantum and other effects which enable us to slightly exceed the speed of light or peep out of the cone. Three approaches have been given: The first has been on the basis of the experiment proposed by Megidish et al wherein they argue that a photon can travel from the future to the past. This was elaborated upon in mathematical terms by the latest research. The second approach is based on a small loophole provided by the uncertainty principle which leads to a velocity that could be slightly greater than that of light. This approach uses noncommutative spacetime effects which have been earlier worked out in greater detail by Sidharth. A third approach too is based on this noncommutative geometry which also leads to a slight excess over the velocity of light. All this is reminiscent of the Hawking radiation from black holes due to slight Quantum mechanical leak. The effects in all these cases are small but could lead to momentous results. As is well known, superluminosity in the case of neutrinos has been reported by observations of the 1987 supernova and a few other experiments.
  2. Sidharth and Das also argued that in principle the radioactive decay rates can be manipulated, in a report appearing in New Advances in Physics Volume 11 (2), 2017. Such a decay manipulation could work in either of two cases. A highly radioactive substance can be made less radioactive, that is its half life could be in principle increased making the substance less dangerous. On the contrary this could work in principle by increasing the decay rates. For instance taking Thorium 232, we could in principle step up its radioactivity and so make it useful for energy generation. Of course the exact experimental technology has to be studied and set up.

B G SIDHARTH

DIRECTOR

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