About
The quantization of gravity is widely believed to result in gravitons -- particles of discrete energy that form gravitational waves. But their detection has so far been considered impossible. Here we show that signatures of single gravitons can be observed in laboratory experiments [1]. We show that stimulated and spontaneous single-graviton processes can become relevant for massive quantum acoustic resonators and that stimulated absorption can be resolved through continuous sensing of quantum jumps. We analyze the feasibility of observing the exchange of single energy quanta between matter and gravitational waves. Our results show that single graviton signatures are within reach of experiments. In analogy to the discovery of the photo-electric effect for photons, such signatures can provide the first experimental evidence of the quantization of gravity.
Our work is outlined in [G. Tobar, S. K. Manikandan, T. Beitel and I. Pikovski, arXiv:2308.15440][1] Corresponding author: pikovski@stevens.edu
[1]: https://arxiv.org/abs/2308.15440.
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The talk
Credits and licence
- Institution
- CERN
- Department
- TH institutes
- Speaker
- Germain Tobar
- Year
- 2023
- Language
- English
- Subjects
- Physics
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
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