Mass Evolution of Schwarzschild Black Holes

Santi, Natalí S. M. de; Santarelli, Raphael

doi:10.1007/s13538-019-00708-y

Braz J Phys

2019

DOI: 10.1007/s13538-019-00708-y

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Mass Evolution of Schwarzschild Black Holes

Natalí S. M. de Santi

Raphael Santarelli

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Cited by 3 publications

References 38 publications

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Krylov complexity of open quantum systems: from hard spheres to black holes

Mohan

2023

J. High Energ. Phys.

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We examine the complexity of quasi-static chaotic open quantum systems. As a prototypical example, we analytically compute the Krylov complexity of a slowly leaking hard-sphere gas using Berry’s conjecture. We then connect it to the holographic complexity of a d + 1-dimensional evaporating black hole using the Complexity=Volume proposal. We model the black hole spacetime by stitching together a sequence of static Schwarzschild patches across incoming negative energy null shock waves. Under certain identification of parameters, we find the late time complexity growth rate during each quasi-static equilibrium to be the same in both systems.

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Krylov complexity of open quantum systems: from hard spheres to black holes

Mohan

2023

J. High Energ. Phys.

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Time-scales to reach chemical equilibrium in ices at snowline distance around compact objects: the influence of accretion mass in the central object

Carvalho

Pilling

2021

Monthly Notices of the Royal Astronomical Society

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In this work, we analyze soft X-ray emission due to mass accretion onto compact stars and its effects on the timescale to reach chemical equilibrium of eventual surrounding astrophysical ices exposed to that radiation. Reaction timescales due to soft X-ray in water-rich and pure ices of, e.g., methanol, acetone, acetonitrile, formic acid, and acetic acid, were determined. For accretion rates between $\dot{m}=10^{-12}-10^{-8}~M_\odot$ yr−1 and distances between 1-3 LY from the central compact objects, the timescales lie in the range 10 − 108 years, with shorter timescales corresponding to higher accretion rates. Obtained timescales for ices at snow-line distances can be small when compared to the lifetime (or age) of the compact stars, showing that chemical equilibrium could have been achieved. Timescales for ices to reach chemical equilibrium depend on X-ray flux and, hence, on accretion rate, which indicates that systems with low accretion rates may not have reached chemical equilibrium.

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About thermodynamics of Schwarzschild black holes in a three-dimensional quantum vacuum with generalized uncertainty relations

Fiscaletti

2024

Kragujevac J Science

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By considering a modified version of generalized uncertainty relations in the model of a three-dimensional dynamic quantum vacuum characterized by a variable energy density, new relevant perspectives of analysis of the thermodynamics of Schwarzschild black holes are explored. The dependence of temperature and entropy of a Schwarzschild black hole with the variable quantum vacuum energy density is analyzed. Finally, the thermodynamics of Schwarzschild black holes surrounded by quintessence is studied in a picture where quintessence, and thus dark energy, is the manifestation of more elementary quantum vacuum energy density fluctuations as well as a state parameter of the vacuum.

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Mass Evolution of Schwarzschild Black Holes

Cited by 3 publications

References 38 publications

Krylov complexity of open quantum systems: from hard spheres to black holes

Krylov complexity of open quantum systems: from hard spheres to black holes

Time-scales to reach chemical equilibrium in ices at snowline distance around compact objects: the influence of accretion mass in the central object

About thermodynamics of Schwarzschild black holes in a three-dimensional quantum vacuum with generalized uncertainty relations

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