Quantum gravity in flatland. (Cover story)

• Autores: Steven Carlip
• Localización: Scientific American, ISSN 0036-8733, Vol. 306, Nº. 4, 2012, págs. 40-47
• Idioma: inglés
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• Resumen

  • The article looks at physics theories that attempt to reconcile the laws of quantum mechanics with physicist Albert Einstein's general theory of relativity by conceptualizing gravity in a two-dimensional (2D), rather than three-dimensional (3D), space. Various issues in the construction of a unified quantum theory of gravity are discussed, including the Heisenberg uncertainty principle, the effect of time, and how the universe began. 2D gravity research presented insights into physics questions regarding topology change, the holographic principle, and black holes. INSETS: How to Quantize Gravity in 2-D;Wormholes and Bangs;Flatland for Real;How Gravity Works in 2-D