India, Sept. 14 -- One of the fundamental concepts in quantum physics is entanglement, which is key to quantum computing. Entanglement, where the quantum properties of two particles can only be described together, no matter how far apart they are, however, is fleeting, and can disintegrate when entangled particles interact with the environment. This places a limit on how long quantum information can survive before what is known as "entanglement sudden death".

Now, scientists at the Raman Research Institute (RRI) in Bengaluru have found a way to make quantum entanglement last longer. They use a "flip operation" with precise timing. This can not only delay sudden death but also prevent or hasten it.

The team, in collaboration with researc...