http://hdl.handle.net/20.500.12128/23477
Tytuł: | Testing Quantum Gravity in the Multi-Messenger Astronomy Era |
Autor: | Piórkowska-Kurpas, Aleksandra Biesiada, Marek |
Słowa kluczowe: | quantum gravity phenomenology; Lorentz Invariance Violation; strong gravitational lensing |
Data wydania: | 2022 |
Źródło: | "Universe" (2022), Vol. 8, iss. 6, art. no. 321 |
Abstrakt: | Quantum gravity (QG) remains elusive despite almost century-long efforts to combine general relativity and quantum mechanics. All the approaches triggered and powered by purely theoretical considerations eventually failed with a prevailing feeling of a complete lack of guidance from the experimental side. Currently, however, this circumstance is beginning to change considerably. We have entered the era of multi-messenger astronomy. The electromagnetic window to the universe— so far the only one—has been tremendously enlarged in the energy range beyond gamma rays up to ultra-high-energy photons and has been complemented by other messengers: high-energy cosmic rays, cosmic neutrinos, and gravitational waves (GWs). This has created a unique environment in which to observationally constrain various phenomenological QG effects. In this paper, we focus on the LIV phenomenology manifested as energy-dependent time-of-flight delays and strong lensing time delays. We review results regarding time-of-flight delays obtained with GRBs. We also recall the idea of energy-dependent lensing time delays, which allow one to constrain LIV models independently of the intrinsic time delay. Lastly, we show how strongly a gravitationally lensed GW signal would place interesting constraints on the LIV. |
URI: | http://hdl.handle.net/20.500.12128/23477 |
DOI: | 10.3390/universe8060321 |
ISSN: | 2218-1997 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
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Piorkowska_Kurpas_testing_quantum_gravity.pdf | 558,61 kB | Adobe PDF | Przejrzyj / Otwórz |
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