Projects per year
Abstract
When a massive quantum body is put into a spatial superposition, it is of interest to consider the quantum aspects of the gravitational field sourced by the body. We argue that in order to understand how the body may become entangled with other massive bodies via gravitational interactions, it must be thought of as being entangled with its own Newtonian-like gravitational field. Thus, a Newtonian-like gravitational field must be capable of carrying quantum information. Our analysis supports the view that table-top experiments testing entanglement of systems interacting via gravity do probe the quantum nature of gravity, even if no ``gravitons'' are emitted during the experiment.
Original language | English |
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Article number | 1943001 |
Number of pages | 6 |
Journal | International Journal of Modern Physics D |
Volume | 28 |
Issue number | 14 |
Early online date | 14 Jun 2019 |
DOIs | |
Publication status | Published - Oct 2019 |
Austrian Fields of Science 2012
- 103025 Quantum mechanics
- 103012 High energy physics
- 103028 Theory of relativity
Keywords
- quant-ph
- gr-qc
- hep-th
- quantum fluctuations
- gravitational radiation
- quantum information
- Quantum gravity
Projects
- 1 Finished
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QLev4G: Quantum control of levitated massive mechanical systems: a new approach for gravitational quantum physics
Aspelmeyer, M. & Paulovics, V.
1/06/15 → 31/05/20
Project: Research funding