Quantum leap by Indian researchers in boosting digital security, Pg14.

Key Highlights:

• Indian researchers have developed new quantum techniques to generate truly random numbers, potentially enhancing digital security.
• The team, led by Urbasi Sinha at Raman Research Institute (RRI), used a general-purpose quantum computer for the experiment.
• The technique involves using time separation in a single particle to look for violations of the Leggett-Garg inequality.
• This breakthrough is the first major research output from the National Quantum Mission.

Detailed Insights:

• Current encryption systems rely on pseudorandom numbers generated by algorithms, which are vulnerable to quantum computers.
• True random numbers are derived from natural processes like quantum behavior, making them unpredictable and more secure.
• Quantum Random Number Generators (QRNGs) use quantum properties to generate random sequences, but certification of their integrity is a challenge.
• Sinha's method uses entanglement and violations of Bell's inequality or Leggett-Garg inequality to ensure true randomness.
• The use of a commercially available quantum computer demonstrates the robustness of the technique for real-world applications.
• The research requires further development and support to become a commercial solution for enhanced digital security.

Key Concepts Involved:

• Quantum Computing: A type of computing that uses quantum mechanics to solve complex problems faster than classical computers.
• Encryption: The process of converting information into a code to prevent unauthorized access.
• Random Numbers: Numbers generated through unpredictable and non-deterministic processes, crucial for security.