Image via WikipediaRead related » Gravity from Quantum InformationWhen high-energy physics theory (hep-th) is described in terms of Einstein's general relativity, Landauer's principle, information erasure at causal horizons, Jacobson's idea, Einstein's special relativity, entropy, thermodynamics, and, to top it all off, quantum mechanics, you know it's going to be tough sledding through very dense physics. Furthermore, if the paper is submitted to arxiv.org, by non-native English-speakers, with sub-par editing for the manuscript, the sledding gets tougher still.
[This related article is recommended in its entirety.]
“It is suggested that classical Einstein gravity [i.e., general relativity] can be derived by using Landauer's principle applied to an information erasure at causal horizons and Jacobson's idea linking the Einstein [field] equation[s] to thermodynamics. Our result implies that gravity has a quantum informational origin.
[...]
In short, the Einstein equations link matter to gravity, and his famous formula E = mc2 links matter to energy. We know also that Landauer’s principle links information to energy. Thus, now we have a relation between information and gravity, the Einstein equations with the quantum informational interpretation. Our theory implies that the Einstein equations [are] more about information than energy or the equation of state. In other words, information might be [a] more profound physical entity than matter or field[s].” [emphasis added]
— Jae-Weon Lee, Hyeong-Chan Kim, Jungjai Lee, 21 Mar 2010, arXiv:1001.5445v2 [hep-th]
Nevertheless, there's big; there's not big. This. Could. Be. Big. (I think.)
If follow-on research pans out, this could well be the progress toward the Holy Grail of physics — the theory of everything, which has eluded string theorists for decades.
Stay tuned, so to speak.
Post 1,524 Einstein Gravity Could Be Emergent
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