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RECENT POSTS IN THIS TOPIC

Steve Dufourny: on 9/23/21 at 15:05pm UTC, wrote Hello Daniele Oriti, I liked your approach for this quantum gravitation....

Daniele Oriti: on 9/21/21 at 21:35pm UTC, wrote The universe as a quantum many-body system Speaker: Daniele Oriti | LMU...


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October 16, 2021

CATEGORY: Blog [back]
TOPIC: The universe as a quantum many-body system by Daniele Oriti [refresh]
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Blogger Daniele Oriti wrote on Sep. 21, 2021 @ 21:35 GMT
The universe as a quantum many-body system

Speaker: Daniele Oriti | LMU München & MCQST



Abstract

Several approaches to quantum gravity suggest that spacetime and geometry are emergent from non-spatiotemporal quantum structures. In some of them, the fundamental quantum entities admit (in some approximation) a simplicial geometric description and can be mapped to generalized tensor networks. This allows also for a primitive entanglement/geometry correspondence. I summarize this formulation of the universe as a quantum many-body system, these immediate consequences as well as more recent results about holographic behavior. Then, I suggest possible lines of further developments from this perspective. Finally, I discuss how the hydrodynamic description of the same system, treated as a quantum fluid, can be given a cosmological interpretation and present a number of recent results about the resulting effective cosmological dynamics, including the replacement of the big bang singularity with a quantum bounce and a late-time accelerated behavior reproducing a phantom-like dark energy from pure quantum gravity origin.



Keywords: #quantum #gravity

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Steve Dufourny wrote on Sep. 23, 2021 @ 15:05 GMT
Hello Daniele Oriti,

I liked your approach for this quantum gravitation. I work myself about the publications , I have quantified it I must say in my theory of spherisation and the quantum and cosmological 3D spheres with the spherical topological geometrical algebras, a tool that I have invented and 3 spacetimes.. The problem is that the majority considers this spacetime of the general...

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