Hawking temperature and the bound on greybody factors in $$D=4$$ D = 4 double field theory

Abstract We investigate the basic properties of Hawking radiation for spherical solutions in $$D=4$$ D = 4 double field theory. We give the expression of the Hawking temperature for the solution and then discuss the results of various limits. We find that for all these limits only Schwarzschild solu...

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Main Author: Yang Liu
Format: Article
Language:English
Published: SpringerOpen 2022-11-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-022-11022-4
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author Yang Liu
author_facet Yang Liu
author_sort Yang Liu
collection DOAJ
description Abstract We investigate the basic properties of Hawking radiation for spherical solutions in $$D=4$$ D = 4 double field theory. We give the expression of the Hawking temperature for the solution and then discuss the results of various limits. We find that for all these limits only Schwarzschild solution and F-JNW solution can generate Hawking radiation. Moreover, we obtain the lower bound on greybody factors $$\sigma _l(\omega )$$ σ l ( ω ) for the spherical solutions in $$D=4$$ D = 4 double field theory. In particular, we calculate the bound on greybody factors $$\sigma _l(\omega )$$ σ l ( ω ) for F-JNW solution. For F-JNW solution, $$\sigma _l(\omega )$$ σ l ( ω ) monotonically increases as a and b increase.
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spelling doaj.art-4c515b8f9ea34e80be8e06e8f0b4a44d2022-12-22T03:46:29ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-11-0182111710.1140/epjc/s10052-022-11022-4Hawking temperature and the bound on greybody factors in $$D=4$$ D = 4 double field theoryYang Liu0School of Physics and Astronomy, University of NottinghamAbstract We investigate the basic properties of Hawking radiation for spherical solutions in $$D=4$$ D = 4 double field theory. We give the expression of the Hawking temperature for the solution and then discuss the results of various limits. We find that for all these limits only Schwarzschild solution and F-JNW solution can generate Hawking radiation. Moreover, we obtain the lower bound on greybody factors $$\sigma _l(\omega )$$ σ l ( ω ) for the spherical solutions in $$D=4$$ D = 4 double field theory. In particular, we calculate the bound on greybody factors $$\sigma _l(\omega )$$ σ l ( ω ) for F-JNW solution. For F-JNW solution, $$\sigma _l(\omega )$$ σ l ( ω ) monotonically increases as a and b increase.https://doi.org/10.1140/epjc/s10052-022-11022-4
spellingShingle Yang Liu
Hawking temperature and the bound on greybody factors in $$D=4$$ D = 4 double field theory
European Physical Journal C: Particles and Fields
title Hawking temperature and the bound on greybody factors in $$D=4$$ D = 4 double field theory
title_full Hawking temperature and the bound on greybody factors in $$D=4$$ D = 4 double field theory
title_fullStr Hawking temperature and the bound on greybody factors in $$D=4$$ D = 4 double field theory
title_full_unstemmed Hawking temperature and the bound on greybody factors in $$D=4$$ D = 4 double field theory
title_short Hawking temperature and the bound on greybody factors in $$D=4$$ D = 4 double field theory
title_sort hawking temperature and the bound on greybody factors in d 4 d 4 double field theory
url https://doi.org/10.1140/epjc/s10052-022-11022-4
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