Markets plunge in early trade driven by IT firms amid H-1B visa fee hike

The Sensex, on Friday, tanked 387.73 points or 0.47 per cent to settle at 82,626.23 and the Nifty declined 96.55 points or ...

The New Math of Quantum Cryptography

In theory, quantum physics can bypass the hard mathematical problems at the root of modern encryption. A new proof shows how.