Do gravastars have an event horizon or a singularity?

Recent work on the black hole information paradox suggests that information (in line with the quantum mechanical understanding of it) cannot be lost from the ... ... black hole represents the support, material substratum that delivers information related to what is happening in such a hole. This information remains on ... Bekenstein realized that unless S = O(ER) for arbitrary states and regions, we could throw extra stuff into the region, making a black hole with lower entropy ... According to a semi-classical calculation in curved-space quantum field theory, however, black holes emit radiation through the spontaneous emission of ... Apr 29, 2013 ... ... black hole in order to find the information carried by the girl in the entropy radiated. And here the important caveat comes. Since the ... What is the origin of black hole entropy? • Does black hole evaporation lose information? Does it violate quantum mechanics? Hawking argued for three decades ... Mar 24, 2020 ... This is in spite of the fact that black holes are some of the most difficult objects in the universe to conduct experiments on. Still, many ... Aug 15, 2023 ... We show that primary financial markets fail to aggregate information when investors hold socially useful information for screening projects. The ... Aug 28, 2015 ... Over time, black holes can either eat more matter or merge together with other objects (or other black holes) to grow larger. Some galaxies like ... Oct 29, 2020 ... In a landmark series of calculations, physicists have proved that black holes can shed information, which seems impossible by definition.