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A Gravitational Mechanism for Cosmological Screening
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Infrared gravitons are continually produced during inflation. Like all particles, their contribution to the vacuum energy comes not only from their bare kinetic energy but also from the interactions they have with other gravitons. These interactions can be substantial -- despite the particles being highly infrared -- because they occur over the enormous spatial volume of the universe. Furthermore, the interactions grow with time evolution because more and more such gravitons come into causal contact with one another. Since gravity is universally attractive, these interactions can act to slow and eventually stop accelerated expansion.
Forward citations
Cited by 2 Pith papers
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Leading Logarithm Quantum Gravity II
The paper derives the leading-logarithm equations of motion for pure quantum gravity in accelerating spacetimes, whose solutions are claimed to re-sum all perturbative leading logarithms to all orders.
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Field theory vacuum and entropic dark energy models
The paper derives new dark energy models from the postulate that the arbitrary oscillator mass in a free field's Hamiltonian is a real, gravitating mass contributing vacuum energy density μK^3.
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