scholarly journals On stochastic effects and primordial black-hole formation

2019 ◽  
Vol 79 (11) ◽  
Author(s):  
Florian Kühnel ◽  
Katherine Freese
Keyword(s):  
Field Theory ◽  
Black Hole ◽  
Inflection Point ◽  
Primordial Black Hole ◽  
Primordial Black Holes ◽  
Hole Formation ◽  
Stochastic Effects ◽  
Black Hole Formation ◽  
Large Quantum ◽  
Inflationary Models

AbstractThe effect of large quantum fluctuations on primordial black-hole formation for inflationary models with a quasi-inflection point is investigated. By using techniques of stochastic inflation in combination with replica field theory and the Feynman–Jensen variational method, it is non-perturbatively demonstrated that the abundance of primordial black holes is amplified by several orders of magnitude as compared to the classical computation.

scholarly journals PRIMORDIAL BLACK HOLE FORMATION FROM INFLATON

2000 ◽  
Vol 09 (06) ◽  
pp. 705-710 ◽  
Author(s):  
XIN HE MENG ◽  
BIN WANG ◽  
S. FENG
Keyword(s):  
Black Hole ◽  
Primordial Black Hole ◽  
Primordial Black Holes ◽  
De Sitter ◽  
Hole Formation ◽  
Black Hole Formation ◽  
Expansion Of The Universe ◽  
Slow Rolling ◽  
The Relationship ◽  
The Universe

Measurements of the distances to SNe Ia have produced strong evidence that the expansion of the Universe is really accelarating, implying the existence of a nearly uniform component of dark energy with the simplest explanation as a cosmological constant. In this paper a small changing cosmological term is proposed, which is a function of a slow-rolling scalar field, by which the de Sitter primordial black holes' properties, for both charged and uncharged cases, are carefully examined and the relationship between the black hole formation and the energy transfer of the inflaton is eluciated. The criterion for primordial black hole formation is given.

scholarly journals Universal threshold for primordial black hole formation

2020 ◽  
Vol 101 (4) ◽  
Author(s):  
Albert Escrivà ◽  
Cristiano Germani ◽  
Ravi K. Sheth
Keyword(s):  
Black Hole ◽  
Primordial Black Hole ◽  
Hole Formation ◽  
Black Hole Formation

scholarly journals Cosmological long-wavelength solutions and primordial black hole formation

2015 ◽  
Vol 91 (8) ◽  
Author(s):  
Tomohiro Harada ◽  
Chul-Moon Yoo ◽  
Tomohiro Nakama ◽  
Yasutaka Koga
Keyword(s):  
Black Hole ◽  
Primordial Black Hole ◽  
Hole Formation ◽  
Long Wavelength ◽  
Black Hole Formation

scholarly journals PRIMORDIAL BLACK HOLE FORMATION IN THE MATTER-DOMINATED PHASE OF THE UNIVERSE

2016 ◽  
Vol 833 (1) ◽  
pp. 61 ◽  
Author(s):  
Tomohiro Harada ◽  
Chul-moon Yoo ◽  
Kazunori Kohri ◽  
Ken-ichi Nakao ◽  
Sanjay Jhingan
Keyword(s):  
Black Hole ◽  
Primordial Black Hole ◽  
Hole Formation ◽  
Black Hole Formation ◽  
The Universe
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