117 citations · 404 across the 10 of their papers we have counts for
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Feynman Diagrams for Stochastic Inflation and Quantum Field Theory in de Sitter Space
Bjorn Garbrecht, Florian Gautier, Gerasimos Rigopoulos +1
We consider a massive scalar field with quartic self-interaction in de~Sitter spacetime and present a diagrammatic expansion that describes the field as driven by stoch…
Infrared Correlations in de Sitter Space: Field Theoretic vs. Stochastic Approach
Bjorn Garbrecht, Gerasimos Rigopoulos, Yi Zhu
We consider massive λϕ^4 theory in de Sitter background. The mass of the scalar field ϕis chosen small enough, such that the amplification of superhorizon momentum modes leads to a…
Can the Reissner-Nordström black hole or Schwarzschild black hole be the stable Planck-scale particle accelerator?
Yi Zhu, Shao-Feng Wu, Yin Jiang +1
It is shown that the extremal Reissner-Nordström black hole, the non-extremal one with multiple scattering particles, and the Schwarzschild black hole with radial head-on particles…
General stationary charged black holes as charged particle accelerators
Yi Zhu, Shao-Feng Wu, Yu-Xiao Liu +1
We study the possibility of getting infinite energy in the center of mass frame of colliding charged particles in a general stationary charged black hole. For black holes with two-…