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HandWiki. Planck Length. Encyclopedia. Available online: https://encyclopedia.pub/entry/35202 (accessed on 25 September 2026).
HandWiki. Planck Length. Encyclopedia. Available at: https://encyclopedia.pub/entry/35202. Accessed September 25, 2026.
HandWiki. "Planck Length" Encyclopedia, https://encyclopedia.pub/entry/35202 (accessed September 25, 2026).
HandWiki. (2022, November 18). Planck Length. In Encyclopedia. https://encyclopedia.pub/entry/35202
HandWiki. "Planck Length." Encyclopedia. Web. 18 November, 2022.
Planck Length
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The content is sourced from: https://handwiki.org/wiki/Planck_length

In physics, the Planck length, denoted ℓP, is a unit of length in the system of Planck units that was originally proposed by physicist Max Planck, equal to 1.616255(18)×10−35 m.[note 1] The Planck length can be defined from three fundamental physical constants: the speed of light, the Planck constant, and the gravitational constant. It is also the reduced Compton wavelength of a particle with Planck mass. Regardless of whether it represents some fundamental limit to the universe, it is a useful unit in theoretical physics.

length ℓp

References

  1. John Baez, The Planck Length http://math.ucr.edu/home/baez/planck/node2.html
  2. "Planck length". http://physics.nist.gov/cgi-bin/cuu/Value?plkl. 
  3. "The Planck Length". http://www.math.ucr.edu/home/baez/planck/node2.html. 
  4. "What Is The Smallest Possible Distance In The Universe?". Forbes. https://www.forbes.com/sites/startswithabang/2019/06/26/what-is-the-smallest-possible-distance-in-the-universe/?sh=2b99cbc848a1. 
  5. M. Planck. Naturlische Masseinheiten. Der Koniglich Preussischen Akademie Der Wissenschaften, p. 479, 1899
  6. Gorelik, Gennady (1992). "First Steps of Quantum Gravity and the Planck Values". http://people.bu.edu/gorelik/cGh_FirstSteps92_MPB_36/cGh_FirstSteps92_text.htm. 
  7. Borzeszkowski, Horst-Heino; Treder, H. J. (6 December 2012). The Meaning of Quantum Gravity. Springer Science & Business Media. ISBN 9789400938939. https://books.google.com/books?id=fPXwCAAAQBAJ&q=Bohr-Rosenfeld+uncertainty+relations&pg=PA33. 
  8. Bernard J. Carr and Steven B. Giddings "Quantum Black Holes", Scientific American, Vol. 292, No. 5, MAY 2005, (pp. 48-55) https://web.archive.org/web/20190214174427/https://pdfs.semanticscholar.org/c2fe/378fdddf98b3726b1ac12788e9cae03b884a.pdf
  9. Cliff Burgess; Fernando Quevedo (November 2007). "The Great Cosmic Roller-Coaster Ride". Scientific American (Scientific American, Inc.): p. 55. 
  10. "The Planck scale: relativity meets quantum mechanics meets gravity". newt.phys.unsw.edu.au. https://newt.phys.unsw.edu.au/einsteinlight/jw/module6_Planck.htm. 
  11. Migdal A.B., The quantum physics, Nauka, pp. 116-117, (1989) https://vk.com/doc264717166_391605654
  12. T. Regge. "Gravitational fields and quantum mechanics". Nuovo Cim. 7, 215 (1958). doi:10.1007/BF02744199. https://doi.org/10.1007%2FBF02744199
  13. Wheeler, J. A. (January 1955). "Geons". Physical Review 97 (2): 511–536. doi:10.1103/PhysRev.97.511. Bibcode: 1955PhRv...97..511W.  https://dx.doi.org/10.1103%2FPhysRev.97.511
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