"New Experiment Aims to Detect Gravitons and Unravel Gravity's Mystery"

The Universe operates under four fundamental forces—gravity, strong, weak, and electromagnetic forces. While we have understood the particles governing most of these forces, the mysterious graviton, thought to explain gravity, remains elusive. But that might change soon.

It’s thought that gravity consists of minute quantum building blocks called gravitons, but so far they have been too elusive to observe. A new result from Pikovski’s Research Group now shows that next-generation quantum sensors can catch a single one.

• A team of researchers, led by Professor Igor Pikovski from the Stevens Institute of Technology, is testing a revolutionary method to detect individual gravitons using a quantum sensor combined with an acoustic resonator. Inspired by previous gravitational wave detections from the Laser Interferometer Gravitational-Wave Observatory (LIGO), this new method aims to identify the building block of gravity.

Portrait of Newton in 1702, painted by Godfrey Kneller. Credit: National Portrait Gallery, London

• Einstein's photo-electric effect Einstein's this technique—only, this time, gravitational waves replace electromagnetic waves. By cross-referencing gravity waves detected by LIGO, the team hopes to measure energy vibrations, which may be the key to confirming gravitons. If successful, this experiment could answer one of physics's profound questions and open doors to a deeper understanding of the Universe.

LIGO Observatory

Though super-sensitive detectors are still developing, the experiment represents a massive leap toward solving the quantum gravity puzzle that has stumped scientists for decades.

By:- Ranjan

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