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Frontiers of Quantum Gravity: shared challenges, converging directions

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arxiv 2207.10618 v1 pith:S3OR6KQL submitted 2022-07-21 hep-th gr-qc

Frontiers of Quantum Gravity: shared challenges, converging directions

classification hep-th gr-qc
keywords gravityquantumcommonapproachescommunitydifferentdirectionsphysics
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Understanding the quantum nature of spacetime and gravity remains one of the most ambitious goals of theoretical physics. It promises to provide key new insights into fundamental particle theory, astrophysics, cosmology and the foundations of physics. Despite this common goal, the community of quantum gravity researchers is sometimes seen as divided into sub-communities working on different, mutually exclusive approaches. In practice however, recent years have shown the emergence of common techniques, results and physical ideas arising from different sub-communities, suggesting exciting new prospects for collaboration and interaction between traditionally distinct approaches. In this White Paper we discuss some of the common themes which have seen a growing interest from various directions, and argue that focusing on them will help the quantum gravity community as a whole towards shared objectives.

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Cited by 4 Pith papers

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    Collective excitations analogous to phonons are derived in quantum gravity condensates within a group field theory model, yielding leading beyond-mean-field corrections to emergent Friedmann dynamics.

  4. Towards theory constraints on ultralight dark matter from quantum gravity

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