Unitary black hole radiation: Schwarzschild-global monopole background
Abstract Black hole radiation from an infinitesimally thin massive collapsing shell, possessing a global monopole charge, which in turn leads to a Schwarzschild black hole with a global monopole charge has been shown to be processed by a unitary evolution. The exterior metric of the collapsing shell...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-08-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-7224-3 |
| _version_ | 1818404503452385280 |
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| author | Arpit Das Narayan Banerjee |
| author_facet | Arpit Das Narayan Banerjee |
| author_sort | Arpit Das |
| collection | DOAJ |
| description | Abstract Black hole radiation from an infinitesimally thin massive collapsing shell, possessing a global monopole charge, which in turn leads to a Schwarzschild black hole with a global monopole charge has been shown to be processed by a unitary evolution. The exterior metric of the collapsing shell is described by the global monopole (GM) metric. The analysis is performed using the Wheeler–deWitt formalism which gave rise to a Schrödinger-like wave equation. Existence of unitarity is confirmed from two independent lines of approach. Firstly, by showing that the trace of the square of the density matrix, of the outgoing radiation, from a quantized massless scalar field, is unity. Secondly, by proving that the conservation of probability holds for the wave function of the system. |
| first_indexed | 2024-12-14T08:41:11Z |
| format | Article |
| id | doaj.art-33d68c781df64bec8a84546bbd52bc0a |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-14T08:41:11Z |
| publishDate | 2019-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-33d68c781df64bec8a84546bbd52bc0a2022-12-21T23:09:18ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-08-0179811010.1140/epjc/s10052-019-7224-3Unitary black hole radiation: Schwarzschild-global monopole backgroundArpit Das0Narayan Banerjee1Department of Physical Sciences, Indian Institute of Science Education and Research KolkataDepartment of Physical Sciences, Indian Institute of Science Education and Research KolkataAbstract Black hole radiation from an infinitesimally thin massive collapsing shell, possessing a global monopole charge, which in turn leads to a Schwarzschild black hole with a global monopole charge has been shown to be processed by a unitary evolution. The exterior metric of the collapsing shell is described by the global monopole (GM) metric. The analysis is performed using the Wheeler–deWitt formalism which gave rise to a Schrödinger-like wave equation. Existence of unitarity is confirmed from two independent lines of approach. Firstly, by showing that the trace of the square of the density matrix, of the outgoing radiation, from a quantized massless scalar field, is unity. Secondly, by proving that the conservation of probability holds for the wave function of the system.http://link.springer.com/article/10.1140/epjc/s10052-019-7224-3 |
| spellingShingle | Arpit Das Narayan Banerjee Unitary black hole radiation: Schwarzschild-global monopole background European Physical Journal C: Particles and Fields |
| title | Unitary black hole radiation: Schwarzschild-global monopole background |
| title_full | Unitary black hole radiation: Schwarzschild-global monopole background |
| title_fullStr | Unitary black hole radiation: Schwarzschild-global monopole background |
| title_full_unstemmed | Unitary black hole radiation: Schwarzschild-global monopole background |
| title_short | Unitary black hole radiation: Schwarzschild-global monopole background |
| title_sort | unitary black hole radiation schwarzschild global monopole background |
| url | http://link.springer.com/article/10.1140/epjc/s10052-019-7224-3 |
| work_keys_str_mv | AT arpitdas unitaryblackholeradiationschwarzschildglobalmonopolebackground AT narayanbanerjee unitaryblackholeradiationschwarzschildglobalmonopolebackground |