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QUANTUM GRAVITY AND MINIMUM LENGTH
Open accessAbstract
The existence of a fundamental scale, a lower bound to any output of a position measurement, seems to be a model-independent feature of quantum gravity. In fact, different approaches to this theory lead to this result. The key ingredients for the appearance of this minimum length are quantum mechanics, special relativity and general relativity. As a consequence, classical notions such as causality or distance between events cannot be expected to be applicable at this scale. They must be replaced by some other, yet unknown, structure.
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“A Planck-scale minimal observable length appears in many approaches to quantum gravity.”
From Reconcile Planck-scale discreteness and the Lorentz-Fitzgerald contraction (2003) · cites this paper as [1]
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Citations
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Metadata
- Authors
- GARAY, L. J.
- Affiliations
- Imperial College London (GB)
- Corresponding author
- GARAY, LUIS J.
- Venue
- International Journal of Modern Physics A
- Publisher
- World Scientific Pub Co Pte Ltd
- Published
- 1995-01-20
- Volume
- 10
- Issue
- 02
- Pages
- 145-165
- ISSN
- 0217-751X (ISSN-L)
- 1793-656X
- OpenAlex
- W2170399496
- Cited by
- 1,371
- References
- 99
- Citations by year
- 2026: 45 · 2025: 66 · 2024: 57 · 2023: 69 · 2022: 68 · 2021: 81 · 2020: 61 · 2019: 63 · 2018: 46 · 2017: 62 · 2016: 90 · 2015: 66 · 2014: 64 · 2013: 66 · 2012: 55
- FWCI
- 11.29
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- International Journal of Modern Physics A (publishedVersion)
- arXiv (Cornell University) (publishedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Noncommutative and Quantum Gravity Theories
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Relativity and Gravitational Theory
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Black Holes and Theoretical Physics
- Keywords
- quantum gravity, minimal length, fundamental length scale, position measurement, quantum mechanics, special relativity, general relativity, causality, discrete spacetime
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