Quantum Gravity Phenomenology II
Quantum gravity is at the frontier of research in physics. The four known interactions — gravitational, electromagnetic, strong and weak nuclear forces — have successfully described all known phenomena, with the exception of the dark sector. Of the four, the quantum of gravitational interaction is y...
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| 格式: | Online |
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| 語言: | 英语 |
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MDPI - Multidisciplinary Digital Publishing Institute
2025
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| 在線閱讀: | ONIX_20250220_9783725823710_242 |
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| collection | Directory of Open Access Books |
| description | Quantum gravity is at the frontier of research in physics. The four known interactions — gravitational, electromagnetic, strong and weak nuclear forces — have successfully described all known phenomena, with the exception of the dark sector. Of the four, the quantum of gravitational interaction is yet to be discovered, due to the weakness of the interaction at small scales. However, gravitational interaction is very strong for astrophysical objects, and bizarre phenomena have been tested experimentally. Using general relativity, gravity is shown as the theory of space–time, and theoretical predictions of black holes, and gravitational lensing, have all been observed in astrophysics. Gravitational waves, recently discovered, brings forth new hope for observational gravitational physics in the realm of the infinitesimal, to the point that the physics of quantum gravity may be within reach. The two volumes of the Universe Special Issue on quantum gravity phenomenology are therefore very timely, with papers describing the search for quantum signatures of gravity in observational physics. Due to the difficulty or impossibility of direct experiments, One of the avenues explored is analog models of gravity. Curved graphene was used to simulate the geometry of the outside of a black hole, and supersonic matter waves could simulate horizon behavior in fluids. Volume I of the Special Issue focuses on these “simulated quantum gravity experiments” or analog models with papers by pioneers in the field. Volume II describes quantum effects in astrophysical and cosmological phenomena which provide predictions for future experiments. |
| format | Online |
| id | doab-20.500.12854ir-152878 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | MDPI - Multidisciplinary Digital Publishing Institute |
| publisherStr | MDPI - Multidisciplinary Digital Publishing Institute |
| record_format | ojs |
| spelling | doab-20.500.12854ir-1528782025-02-20T13:13:01Z Quantum Gravity Phenomenology II Dasgupta, Arundhati Iorio, Alfredo background independence space–time physics geometry loop quantum gravity covariance noncommutative geometry white dwarf neutron star equation of state Chandrasekhar limit quantum cosmology local supersymmetry cosmic inflation inflation entanglement entropy scrambling time Trans-Planckian Censorship Conjecture resonant bar detector gravitational wave generalized uncertainty principle path integral vacuum energy dark matter vacuum polarization active galaxy nuclei WKB approximation minisuperspace dynamics canonical methods of quantization Born–Oppenheimer separation equivalence principle general relativity quantum gravity preferred reference frame vacuum state astrophysics quantum gravity phenomenology primordial black holes Hawking radiation doubly special relativity relative locality relativistic deformed kinematics gravitationalwave semi-classical gravity thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time Quantum gravity is at the frontier of research in physics. The four known interactions — gravitational, electromagnetic, strong and weak nuclear forces — have successfully described all known phenomena, with the exception of the dark sector. Of the four, the quantum of gravitational interaction is yet to be discovered, due to the weakness of the interaction at small scales. However, gravitational interaction is very strong for astrophysical objects, and bizarre phenomena have been tested experimentally. Using general relativity, gravity is shown as the theory of space–time, and theoretical predictions of black holes, and gravitational lensing, have all been observed in astrophysics. Gravitational waves, recently discovered, brings forth new hope for observational gravitational physics in the realm of the infinitesimal, to the point that the physics of quantum gravity may be within reach. The two volumes of the Universe Special Issue on quantum gravity phenomenology are therefore very timely, with papers describing the search for quantum signatures of gravity in observational physics. Due to the difficulty or impossibility of direct experiments, One of the avenues explored is analog models of gravity. Curved graphene was used to simulate the geometry of the outside of a black hole, and supersonic matter waves could simulate horizon behavior in fluids. Volume I of the Special Issue focuses on these “simulated quantum gravity experiments” or analog models with papers by pioneers in the field. Volume II describes quantum effects in astrophysical and cosmological phenomena which provide predictions for future experiments. 2025-02-20T13:12:59Z 2025-02-20T13:12:59Z 2024 book ONIX_20250220_9783725823710_242 9783725823710 9783725823727 https://directory.doabooks.org/handle/20.500.12854/152878 eng application/octet-stream Attribution 4.0 International https://mdpi.com/books/pdfview/book/10080 MDPI - Multidisciplinary Digital Publishing Institute 10.3390/books978-3-7258-2372-7 10.3390/books978-3-7258-2372-7 46cabcaa-dd94-4bfe-87b4-55023c1b36d0 9783725823710 9783725823727 214 Basel open access |
| spellingShingle | background independence space–time physics geometry loop quantum gravity covariance noncommutative geometry white dwarf neutron star equation of state Chandrasekhar limit quantum cosmology local supersymmetry cosmic inflation inflation entanglement entropy scrambling time Trans-Planckian Censorship Conjecture resonant bar detector gravitational wave generalized uncertainty principle path integral vacuum energy dark matter vacuum polarization active galaxy nuclei WKB approximation minisuperspace dynamics canonical methods of quantization Born–Oppenheimer separation equivalence principle general relativity quantum gravity preferred reference frame vacuum state astrophysics quantum gravity phenomenology primordial black holes Hawking radiation doubly special relativity relative locality relativistic deformed kinematics gravitationalwave semi-classical gravity thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time Quantum Gravity Phenomenology II |
| title | Quantum Gravity Phenomenology II |
| title_full | Quantum Gravity Phenomenology II |
| title_fullStr | Quantum Gravity Phenomenology II |
| title_full_unstemmed | Quantum Gravity Phenomenology II |
| title_short | Quantum Gravity Phenomenology II |
| title_sort | quantum gravity phenomenology ii |
| topic | background independence space–time physics geometry loop quantum gravity covariance noncommutative geometry white dwarf neutron star equation of state Chandrasekhar limit quantum cosmology local supersymmetry cosmic inflation inflation entanglement entropy scrambling time Trans-Planckian Censorship Conjecture resonant bar detector gravitational wave generalized uncertainty principle path integral vacuum energy dark matter vacuum polarization active galaxy nuclei WKB approximation minisuperspace dynamics canonical methods of quantization Born–Oppenheimer separation equivalence principle general relativity quantum gravity preferred reference frame vacuum state astrophysics quantum gravity phenomenology primordial black holes Hawking radiation doubly special relativity relative locality relativistic deformed kinematics gravitationalwave semi-classical gravity thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time |
| topic_facet | background independence space–time physics geometry loop quantum gravity covariance noncommutative geometry white dwarf neutron star equation of state Chandrasekhar limit quantum cosmology local supersymmetry cosmic inflation inflation entanglement entropy scrambling time Trans-Planckian Censorship Conjecture resonant bar detector gravitational wave generalized uncertainty principle path integral vacuum energy dark matter vacuum polarization active galaxy nuclei WKB approximation minisuperspace dynamics canonical methods of quantization Born–Oppenheimer separation equivalence principle general relativity quantum gravity preferred reference frame vacuum state astrophysics quantum gravity phenomenology primordial black holes Hawking radiation doubly special relativity relative locality relativistic deformed kinematics gravitationalwave semi-classical gravity thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time |
| url | ONIX_20250220_9783725823710_242 |