Cargando…
Prospects for experimental quantum gravity
<!--HTML--><p>Understanding quantum gravity is one of the biggest intellectual challenges of modern science. String theory and the related AdS/CFT correspondence provide a rigorous theoretical laboratory to address some aspects of quantum gravity, and a few semi-classical quantum gravity...
Autor principal: | |
---|---|
Lenguaje: | eng |
Publicado: |
2022
|
Materias: | |
Acceso en línea: | http://cds.cern.ch/record/2839373 |
_version_ | 1780975963671101440 |
---|---|
author | Lykken, Joseph |
author_facet | Lykken, Joseph |
author_sort | Lykken, Joseph |
collection | CERN |
description | <!--HTML--><p>Understanding quantum gravity is one of the biggest intellectual challenges of modern science. String theory and the related AdS/CFT correspondence provide a rigorous theoretical laboratory to address some aspects of quantum gravity, and a few semi-classical quantum gravity effects, notably the existence of Hawking radiation, are well-established and understood. However we are strongly handicapped by the inability to perform experiments that probe quantum gravity effects directly. In recent years a series of results have established a promising pathway towards exhibiting and exploring genuine quantum gravity effects in a laboratory setting. This pathway exploits what appears to be a fundamental relationship between the connectedness of spacetime and quantum entanglement, as well as the holographic duality between certain bulk gravity phenomena and non-gravitational quantum systems. Both ideas are realized in the phenomenon of traversable wormholes, which have been shown in the rigorous context of AdS/CFT to be a feature of semi-classical quantum gravity. Such wormholes are rendered traversable by a quantum effect involving a flux of negative energy, similar to the quantum phenomenon that enables Hawking radiation. Furthermore these wormholes have a holographic dual description as a new form of quantum teleportation, which can be explicitly realized in the dynamics of the SYK model with N interacting Majorana fermions. There is considerable evidence that N~100 should be good enough to exhibit the key properties of traversable wormholes in a laboratory setting, e.g., by producing the dynamics on a quantum processor. I will describe how such experiments might be performed and what we could learn from them.</p> |
id | cern-2839373 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2022 |
record_format | invenio |
spelling | cern-28393732022-11-07T12:01:19Z http://cds.cern.ch/record/2839373 eng Lykken, Joseph Prospects for experimental quantum gravity Prospects for experimental quantum gravity Theory Colloquia <!--HTML--><p>Understanding quantum gravity is one of the biggest intellectual challenges of modern science. String theory and the related AdS/CFT correspondence provide a rigorous theoretical laboratory to address some aspects of quantum gravity, and a few semi-classical quantum gravity effects, notably the existence of Hawking radiation, are well-established and understood. However we are strongly handicapped by the inability to perform experiments that probe quantum gravity effects directly. In recent years a series of results have established a promising pathway towards exhibiting and exploring genuine quantum gravity effects in a laboratory setting. This pathway exploits what appears to be a fundamental relationship between the connectedness of spacetime and quantum entanglement, as well as the holographic duality between certain bulk gravity phenomena and non-gravitational quantum systems. Both ideas are realized in the phenomenon of traversable wormholes, which have been shown in the rigorous context of AdS/CFT to be a feature of semi-classical quantum gravity. Such wormholes are rendered traversable by a quantum effect involving a flux of negative energy, similar to the quantum phenomenon that enables Hawking radiation. Furthermore these wormholes have a holographic dual description as a new form of quantum teleportation, which can be explicitly realized in the dynamics of the SYK model with N interacting Majorana fermions. There is considerable evidence that N~100 should be good enough to exhibit the key properties of traversable wormholes in a laboratory setting, e.g., by producing the dynamics on a quantum processor. I will describe how such experiments might be performed and what we could learn from them.</p> 2022 |
spellingShingle | Theory Colloquia Lykken, Joseph Prospects for experimental quantum gravity |
title | Prospects for experimental quantum gravity |
title_full | Prospects for experimental quantum gravity |
title_fullStr | Prospects for experimental quantum gravity |
title_full_unstemmed | Prospects for experimental quantum gravity |
title_short | Prospects for experimental quantum gravity |
title_sort | prospects for experimental quantum gravity |
topic | Theory Colloquia |
url | http://cds.cern.ch/record/2839373 |
work_keys_str_mv | AT lykkenjoseph prospectsforexperimentalquantumgravity |