Quest for the Graviton

5 Aug 2026, 16:30
1h
Lecture Hall (Kavli IPMU)

Lecture Hall

Kavli IPMU

Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8583, Japan

Speaker

Jiro Soda

Description

The quest for the graviton—the hypothetical quantum of gravity—remains one of the ultimate frontiers in modern physics. In this talk, I will first introduce Freeman Dyson’s seminal work on graviton detection. Although Dyson famously reached a negative conclusion, arguing that detecting a single graviton is practically impossible, a closer look at his arguments reveals invaluable hints for modern research. Building on these insights, I will review several recent proposals for graviton detection and discuss potential future directions. In this context, I will highlight our own related work, demonstrating how contemporary quantum technologies might open new pathways toward witnessing the quantum nature of gravity.

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