Raman Research Institute-led study shows a well-timed flip can delay loss of quantum entanglement
A study by scientists from the Raman Research Institute, the University of Calgary and Louisiana State University, reported by DST on 7 September 2026, showed that a single well-timed flip operation can delay the 'sudden death' of quantum entanglement.
Summary
Scientists from the Raman Research Institute (RRI), an autonomous institute of the Department of Science and Technology, with the University of Calgary and Louisiana State University, found a way to preserve quantum entanglement for longer, DST said on 7 September 2026. Entanglement between two particles can vanish at a finite time as they decay, a phenomenon called entanglement sudden death. The team showed that applying a single flip operation at the right moment can avoid, delay or hasten this sudden death, so timing matters as much as the operation itself. The method could help fragile quantum links in future quantum computers last longer without changing hardware. Lead author Saumya Ranjan Behera works in RRI's QuIC lab.
Key facts
- Institutions
- Raman Research Institute (DST), University of Calgary, Louisiana State University
- Problem
- Entanglement 'sudden death' as particles decay
- Finding
- A single, well-timed flip operation can delay it
- Use
- Longer-lived quantum links, no hardware change
- Lead author
- Saumya Ranjan Behera, QuIC lab, RRI
Practice MCQs 1 questions
Scientists from which Indian institute led a study showing that a well-timed flip operation can delay 'entanglement sudden death' in quantum systems?
Show answer
Correct answer: B — Raman Research Institute
The study was by scientists of the Raman Research Institute (an autonomous DST institute) with the University of Calgary and Louisiana State University.