The Infra-Red Road to Quantum Gravity

• URL: http://arxiv.org/abs/2510.12977v2
• Date: Thu, 16 Oct 2025 20:40:01 GMT
• Title: The Infra-Red Road to Quantum Gravity
• Abstract summary: We review work in areas ranging from condensed matter physics to quantum gravity.<n>We use many different examples to illustrate our arguments.<n>In our view, low-energy theories of quantum gravity are, in our view, the right way to make progress in this field.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We review work in areas ranging from condensed matter physics to quantum gravity, with the following interconnected questions in mind: (i) what is the nature of the vacuum in condensed matter systems, in quantum field theory, and in classical and quantum gravity; (ii) how do analogies between these systems work, how well do they work, and how useful are they; (iii) what modifications can we make to quantum mechanics to deal with quantum gravity, and (iv) how and why low-energy theories of quantum gravity are, in our view, the right way to make progress in this field. We use many different examples to illustrate our arguments.

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